Use "is not enabled" for all extension error messages
support for multi-way-if
derive GHC Generic
Also derive GHC Generic for Tool Boxed and SrcLoc
Fixed processing of Unicode forall.
Merge pull request #26 from nh2/consistent-extension-errors

Use "is not enabled" for all extension error messages
Merge pull request #34 from skogsbaer/master

support for multi-way-if
Merge pull request #41 from phischu/master

Derive GHC Generic.
Merge pull request #59 from asr/master

Fixed processing of Unicode forall.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	Test/failing.txt