Added criterion services that were in kernel so far
Added PhpStorm files to .gitignore
Added coveralls.io support
Added Mockery init to phpunit.xml
Added QueryBuilderTest unit test stub
Various fixes to QueryBuilder classes for tests
Implemented unit tests
Added API tests

Calls methods from a real query builder instance. Uses the __toString()
export of queries to assert that the built query is valid.

Depends on a fork of ezpublish-api that has __toString()
implemented for queries.