Now storing: language label, original text, trees

If the stored tree cannot be linearized then the original text is
parsed to obtain a new tree. This makes the wiki insensitive
to tree changes (which can happen e.g. as a result of refactoring).

Also: remove "add sentence by random generation"

Also: Wiki page displays original input not the first variant,
i.e. "does not" is not replaced by "doesn't".

Conflicts:
	src/ch/uzh/ifi/attempto/acewiki/gui/SentenceComponent.java
Update logger to be able to use more than 2 args

in info/error/etc. calls.
Fix locale guessing from grammar
Forgot to commit these files earlier