Signed-off-by: Rafał Malinowski <email@example.com>
translations: allow to install additional translations without modyfing kadu source
now Kadu search for *.language files in share/kadu/translation directory and uses name of file as name of translation (2 letters language name) and content of this file as display name of translation (Polski, English and so on)...
translations: enabled Czech translation in configuration window and configuration wizard
core: added LanguagesManager class