fixes because of http://en.wikipedia.org/wiki/Double-checked_locking
Multishare: updated to support freakshare


git-svn-id: svn://svn.jdownloader.org/jdownloader/trunk@20175 ebf7c1c2-ba36-0410-9fe8-c592906822b4
-watchseries: RIP fixes #7829
-fixed vidhog fixes #7828
-added videoslasher maintenance errorhandling fixes #7827
-easybytez folderdecrypter done properly fixes #7826
-improved freeway errorhandling
-removed some error-causing chomikuj code
-added support for swankshare
-fixed keep2share premium
-fixed filefactory

git-svn-id: svn://svn.jdownloader.org/jdownloader/trunk@20178 ebf7c1c2-ba36-0410-9fe8-c592906822b4