[osu] make username searching use previous_nicks
[uguu] give the signal string a 'r' prefix
[lastfm] added lastfm module
[mishimmie] added mishimmie module
[sprunge] added sprunge module
[weather] added weather module
[wolframalpha] added wolframalpha module
[setup.py] bump version
Merge branch 'master' of https://github.com/aki--aki/xbotpp_contrib