Added first qunit test, ran by karma
Moved performance test files from /tests/performance to /performance
Ignored .DS_Store files
Added sinon
Changed test name
picturePolyfill rewritten with module pattern

picturePolyfill rewritten with module pattern to have its main
functions exposed and testable
Added more tests, script was adapted
Added tests for the _getSrcsetHash function, and made it stronger
Added more tests, made code stronger
Completed tests, refactored some method names
Merge branch 'version-3'
Some refactoring

Did some refactoring, some test still fails on IE9
Added test/index.html to test on VirtualBox's IE
Added trim capability for IE8 + small refactoring
Fixed .trim problem in IE8 tests (jumps tests on IE8)
Merge branch 'master' into version-3
Revert 4a89ca2..bbbdad1

This rolls back to commit 4a89ca286a919096562899a66d55a616ae098484.
IE<9 bug fixed, tests now pass on IE7 and 8
Small format change
Deletet "version1" folder