ChannelFeed:

- Sort the ChanMsgItems of the channel by date

ChanMsgItem:
- Fixed adding all files (SubFileItem) again by pressing the unsubscribe button (only in Friend Storm)
- Enable unsubscribe button only when channel is subscribed (only in Friend Storm)
- Fixed adding files with umlauts (utf8) on Windows
- Enabled Download and Play button in ChanMsgItem, when they are enabled in the SubFileItems

ftServer:
- Added the method alreadyHaveFile for use in the GUI - recompile of GUI needed

SubFileItem:
- Added state strings like LOCAL, REMOTE, ERROR, ... for translating


git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@3614 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/ft/ftserver.h

@@ -120,6 +120,7 @@ ftController *getController() const { return mFtController ; }
 /***
  * Control of Downloads
  ***/
+virtual bool alreadyHaveFile(const std::string& hash, FileInfo &info);
 virtual bool FileRequest(const std::string& fname, const std::string& hash, uint64_t size, const std::string& dest, uint32_t flags, const std::list<std::string>& srcIds);
 virtual bool FileCancel(const std::string& hash);
 virtual bool FileControl(const std::string& hash, uint32_t flags);