LCL, Translations unit: Improved message context generation:
    * Normilize lineends in messages from RST;
    * Unify fuzzy flag setting: set them also when just synchronizing PO files, not only when PO files are updated from RST.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46099 4005530d-fff6-0310-9dd1-cebe43e6787f