feature: browser implemented and tested
feature: add status and statusText support to ajax
feature: add iframe loading error when status code is not 200
fix: fix mouse, stimuli and browser destroy methods they are now chainable and can have a callback as first parameter
test: add synchronise method test for deferable
chore: put files configuration in it's own file this way the configuration can be shared by karma.conf and grunt file
chore: karma coverage should be fixed