Added PHP 5.4 and 5.5 to .travis.yml
Merge pull request #230 from pulzarraider/patch-1

Added PHP 5.4 and 5.5 to .travis.yml
Add missing json type
Add `dataType: 'html'` to ajax call
Update Filter.php

by default filter have empty value, which means, that it should not modify query
Merge pull request #248 from zhil/master

Slow list action with complicated filters.
Move test to main AdminBundle
Fix tests
Merge pull request #246 from tautrimas/master

Add `dataType: 'html'` to ajax call