Added possibility to enable/disable SCAYT by default on editor startup.  See issue #22
See issue #22
Update HISTORY.txt

Mismatch in versions
Merge remote-tracking branch 'collective.ckeditor/master'
Resolved conflict

Merge branch 'master' of https://github.com/gbastien/collective.ckeditor

Conflicts:
	docs/HISTORY.txt
Make the method determining language to use in SCAYT easy to test...
Added test for _determinateScaytLanguageToUse method
Simplified method and added relevant comments
Added upgrade step to 3612
Updated upgrade instruction and todo list (one element less ;-))
Updated comments
Adapted to determinate SCAYT language from current content language
Clearer comments
Run test on a Document, not on the portal, more realistic
Merge pull request #23 from gbastien/master

Make it possible to enable/disable SCAYT, see issue #22