Merge pull request #3 from jollyroger/master

upd: Ukrainian translation
fix: detect clean vcard as empty on ejabberd
add: global Russian aliases for some commands
add: exclude `syslogs_search` from search
fix: zeroes in un_unix func
add: oboobs command
add: xep-0153 support
add: obutts command
add: change locale for different users
fix: users localization
fix: localization for Urkainian users
add: smart localization in chat plugin
fix: variable conflict in soft_update
fix: locale in raw_whois
add: lang command
fix: help for lang command
fix: exception in un_unix function
fix: exception in opener func
fix: wrong phrases in poke command
add: when, whenstat commands;
!!!: read http://isida-bot.com/wiki/update *before* update!