[FIX] #502 Partial Sharing may not recognize file encoding 

The encoding is now included as meta information to correctly
set the encoding on the receiver side.

Also cleaned up if/else parts in the recoverFiles method of the
ConsistencyWatchdogHandler class.

Change-Id: I10a1041031f4d18674211f11b7474995cc260d09
Reviewed-on: http://saros-build.imp.fu-berlin.de/gerrit/1737
Tested-by: Saros-Core QA
Tested-by: Saros-Eclipse QA
Tested-by: Jenkins CI
Reviewed-by: Damla Durmaz <ddurmaz88@gmail.com>
Reviewed-by: Stefan Rossbach <srossbach@arcor.de>