Rewrote setupFilters section of NDB_Menu_Filter to be maintainable
Fixed bug where HAVING clauses would not work correctly
Added unit tests for NDB_Menu_Filter
Got PHPUnit to pass with default params
Added test for setFilterSortOrder
Run unit tests for menu filter filters
Correct path to composer autoload
Explicitly install composer from travis so that autoload works
Ran PHPCS on NDB_Menu_Filter post-rebase
Merge pull request #743 from driusan/NDB_Menu_Filter-SetupFiltersRewrite

Refactor of NDB_Menu_Filter setupFilters