Update zh_CN.po

First attempt to make the Simplified Chinese available for Frostwire ( current translation is incomplete and really awful).
Once the pull request accepted, I will go on finishing the translation in a few weeks.
Update hr.po
Update hr.po
Updated jlibtorrent mac os x binary.
Updated jlibtorrent mac os x binary.
Merge pull request #242 from darthxjanus/patch-1

Update hr.po
Merge pull request #241 from win32re/patch-2

Update hr.po
Merge pull request #240 from eudaemon01/patch-1

Update zh_CN.po ( Stage 1/5 )
Better way to handle persistent download extra data.
Using only one FilenameUtils from apache.
Cleanup.
Cleanup.
Fixes Croatian translation syntax errors.

Updated message bundle jar.
Updated changelog.