Whitespace
Make Language and Encoding threadsafe

Read-only access to these classes is now threadsafe, with one exception:
The encoding neds to be already initialized (i.e. init() must not be called).
This makes bug 9336 unreproducable on my machine, although it is not completely
fixed yet.
Encapsulate Converter class

Now members are not directly accessible anymore.
Merge remote-tracking branch 'github/build-bot-master' into bleeding-edge-master
2014.12.07-18.00