Synced gitignores with github repo (#1245)

* Renamed scripts directory into contrib

* Added script to download gitignores from github

* Synced gitignores with github repo

options/gitignore/Symfony

@@ -4,11 +4,16 @@
 !app/cache/.gitkeep
 !app/logs/.gitkeep
 
-# Cache and logs (Symfony3)
+# Email spool folder
+/app/spool/*
+
+# Cache, session files and logs (Symfony3)
 /var/cache/*
 /var/logs/*
+/var/sessions/*
 !var/cache/.gitkeep
 !var/logs/.gitkeep
+!var/sessions/.gitkeep
 
 # Parameters
 /app/config/parameters.yml
@@ -20,7 +25,6 @@
 /bin/*
 !bin/console
 !bin/symfony_requirements
-/vendor/
 
 # Assets and user uploads
 /web/bundles/
@@ -33,5 +37,5 @@
 # Build data
 /build/
 
-# Composer PHAR
-/composer.phar
+# Backup entities generated with doctrine:generate:entities command
+**/Entity/*~