Daemon: work with filelist

Conflicts:
	eiskaltdcpp-daemon/ServerThread.cpp
CLI: update TODO
Daemon: tiny cosmetic changes
Added Chinese (China) translation.
doc up
Translations were updated from Transifex.
Daemon: move list.open -> list.get, rewrite list.open, add list.{listopened,close,closeall}
Core: fix in DirectoryListing, move find function in public from private
Daemon: add list.lsdir method
Daemon: loadlist in thread
Daemon: small changes in return values
CLI: update TODO
Core: added options: LogFileSpy, LogFormatSpy (issue 1403)
Qt UI: added some options in settings dialog: LOG_FILE_SPY, LOG_FORMAT_SPY
Core: small cosmetic changes.
Qt UI: some improvements after 03bcc0e
DHT: use few servers for getting initial list of nodes
Qt UI: fix for 03bcc0e
Qt UI: fix build in Mac OS X 10.9 using clang
Qt UI: fix build in Mac OS X 10.9 using clang
Extra: fix clang warning:
comparison of unsigned expression >= 0 is always true
Qt UI: fix typo in Mac OS X specific code
doc up