diff --git a/.travis.yml b/.travis.yml
index 6a6802af911..c03bc61caf0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -277,10 +277,6 @@ script:
   php upgrade2.php 3.5.0 3.6.0 ignoredbversion > $TRAVIS_BUILD_DIR/upgrade350360-2.log
   php upgrade.php 3.6.0 3.7.0 ignoredbversion > $TRAVIS_BUILD_DIR/upgrade360370.log
   php upgrade2.php 3.6.0 3.7.0 ignoredbversion > $TRAVIS_BUILD_DIR/upgrade360370-2.log
-  # php upgrade.php 3.7.0 3.8.0 ignoredbversion > $TRAVIS_BUILD_DIR/upgrade370380.log
-  # php upgrade2.php 3.7.0 3.8.0 ignoredbversion > $TRAVIS_BUILD_DIR/upgrade370380-2.log
-  # php upgrade.php 3.8.0 3.9.0 ignoredbversion > $TRAVIS_BUILD_DIR/upgrade380390.log
-  # php upgrade2.php 3.8.0 3.9.0 ignoredbversion > $TRAVIS_BUILD_DIR/upgrade380390-2.log
   cd -
   set +e
   echo
diff --git a/htdocs/contrat/class/contrat.class.php b/htdocs/contrat/class/contrat.class.php
index f5b8d516900..fb8b155a35c 100644
--- a/htdocs/contrat/class/contrat.class.php
+++ b/htdocs/contrat/class/contrat.class.php
@@ -8,6 +8,7 @@
  * Copyright (C) 2013		Christophe Battarel		<christophe.battarel@altairis.fr>
  * Copyright (C) 2013		Florian Henry			<florian.henry@open-concept.pro>
  * Copyright (C) 2014-2015	Marcos García			<marcosgdf@gmail.com>
+ * Copyright (C) 2015		Ferran Marcet			<fmarcet@2byte.es>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -1017,6 +1018,13 @@ class Contrat extends CommonObject
 			}
 		}
 
+		if (! $error)
+		{
+			// Delete linked object
+			$res = $this->deleteObjectLinked();
+			if ($res < 0) $error++;
+		}
+
 		if (! $error)
 		{
 			// Delete contratdet_log
diff --git a/htdocs/core/modules/commande/doc/pdf_einstein.modules.php b/htdocs/core/modules/commande/doc/pdf_einstein.modules.php
index 9365f4a96bd..760351fa4b3 100644
--- a/htdocs/core/modules/commande/doc/pdf_einstein.modules.php
+++ b/htdocs/core/modules/commande/doc/pdf_einstein.modules.php
@@ -431,7 +431,7 @@ class pdf_einstein extends ModelePDFCommandes
 					$this->tva[$vatrate] += $tvaligne;
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/commande/doc/pdf_proforma.modules.php b/htdocs/core/modules/commande/doc/pdf_proforma.modules.php
index 670870421cb..0e6870d67c8 100644
--- a/htdocs/core/modules/commande/doc/pdf_proforma.modules.php
+++ b/htdocs/core/modules/commande/doc/pdf_proforma.modules.php
@@ -429,7 +429,7 @@ class pdf_proforma extends ModelePDFCommandes
 					$this->tva[$vatrate] += $tvaligne;
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/expedition/doc/pdf_merou.modules.php b/htdocs/core/modules/expedition/doc/pdf_merou.modules.php
index c424d7a2ae3..68ccb2fb471 100644
--- a/htdocs/core/modules/expedition/doc/pdf_merou.modules.php
+++ b/htdocs/core/modules/expedition/doc/pdf_merou.modules.php
@@ -276,7 +276,7 @@ class pdf_merou extends ModelePdfExpedition
 					$pdf->MultiCell(30, 3, $object->lines[$i]->qty_shipped, 0, 'C', 0);
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php b/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php
index 25651ebc1a7..cab73fd1d27 100644
--- a/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php
+++ b/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php
@@ -290,7 +290,7 @@ class pdf_rouget extends ModelePdfExpedition
 					$pdf->MultiCell(($this->page_largeur - $this->marge_droite - $this->posxqtytoship), 3, $object->lines[$i]->qty_shipped,'','C');
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/facture/doc/pdf_crabe.modules.php b/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
index bf565e53341..d3d99c5ef53 100644
--- a/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
+++ b/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
@@ -489,7 +489,7 @@ class pdf_crabe extends ModelePDFFactures
 					if ($posYAfterImage > $posYAfterDescription) $nexY=$posYAfterImage;
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/livraison/doc/pdf_typhon.modules.php b/htdocs/core/modules/livraison/doc/pdf_typhon.modules.php
index 340882a3e5a..365fbef4cdf 100644
--- a/htdocs/core/modules/livraison/doc/pdf_typhon.modules.php
+++ b/htdocs/core/modules/livraison/doc/pdf_typhon.modules.php
@@ -395,7 +395,7 @@ class pdf_typhon extends ModelePDFDeliveryOrder
 					 */
 
 					// Add line
-					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblines - 1))
+					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblines - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/project/doc/pdf_baleine.modules.php b/htdocs/core/modules/project/doc/pdf_baleine.modules.php
index c40b8bb93a1..db0017a2e98 100644
--- a/htdocs/core/modules/project/doc/pdf_baleine.modules.php
+++ b/htdocs/core/modules/project/doc/pdf_baleine.modules.php
@@ -242,7 +242,7 @@ class pdf_baleine extends ModelePDFProjects
 					$nexY = $pdf->GetY();
 
 					// Add line
-					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
+					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/propale/doc/pdf_azur.modules.php b/htdocs/core/modules/propale/doc/pdf_azur.modules.php
index b15f5059eb4..1f6e4cec66e 100644
--- a/htdocs/core/modules/propale/doc/pdf_azur.modules.php
+++ b/htdocs/core/modules/propale/doc/pdf_azur.modules.php
@@ -520,7 +520,7 @@ class pdf_azur extends ModelePDFPropales
 					if ($posYAfterImage > $posYAfterDescription) $nexY=$posYAfterImage;
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/supplier_invoice/pdf/pdf_canelle.modules.php b/htdocs/core/modules/supplier_invoice/pdf/pdf_canelle.modules.php
index 03256fbc9ee..e9b0464f72f 100644
--- a/htdocs/core/modules/supplier_invoice/pdf/pdf_canelle.modules.php
+++ b/htdocs/core/modules/supplier_invoice/pdf/pdf_canelle.modules.php
@@ -396,7 +396,7 @@ class pdf_canelle extends ModelePDFSuppliersInvoices
 					$this->localtax2[$localtax2rate]+=$localtax2ligne;
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));
diff --git a/htdocs/core/modules/supplier_order/pdf/pdf_muscadet.modules.php b/htdocs/core/modules/supplier_order/pdf/pdf_muscadet.modules.php
index a20971fa181..ef9baa25a1a 100644
--- a/htdocs/core/modules/supplier_order/pdf/pdf_muscadet.modules.php
+++ b/htdocs/core/modules/supplier_order/pdf/pdf_muscadet.modules.php
@@ -420,7 +420,7 @@ class pdf_muscadet extends ModelePDFSuppliersOrders
 
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(210,210,210)));