feature #857 git ignore the whole var directory by default (Tobion)

This PR was merged into the 3.0-dev branch.

Discussion
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git ignore the whole var directory by default

Commits
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bca585a git ignore the whole var directory by default

Author: fabpot

.gitignore

@@ -1,12 +1,9 @@
 /app/config/parameters.yml
 /build/
 /phpunit.xml
-/var/bootstrap.php.cache
-/var/cache/*
+/var/
 !var/cache/.gitkeep
-/var/logs/*
 !var/logs/.gitkeep
-/var/sessions/*
 !var/sessions/.gitkeep
 /vendor/
 /web/bundles/