Dutch translations for formExtension validation messages
One label ("This field") was still hardcoded, added this to the messages struct as well.
Fixed JSHint error
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/aa.formExtensions.js
added blur event unbinding to ngModel directive destroy method
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/aa.formExtensions.js
Added small section about the configured form extension
moved section to proper location :)
reworked the content parsing. Old version was using transclusion which wasn't needed, so that was removed. Parsing now looks for elements with an ng-model or ngModel attribute instead of only input and select elements.
Doesn't work flawlessly yet though, for some reason after adding 'ng-minlenth' the textinputs turn out empty. (even though the model is set correctly)
removed unused var
Fixed broken tests. (Apparently jqLite.get() doesn't work when running the tests in Karma/PhantomJS)
removed unnecessary attribute removal
updated readme to reflect latest code changes
Merge pull request #21 from rolandzwaga/master

Dutch translations for formExtension validation messages