preview of emoticons
style selector

Unfortunately Qt developers removed some old native skins from support, only 3 skins are supported on Linux.
Number of native skins depends on OS and Qt built system.
error handling for missing graphical icons

preview of emoticons based on dynamic list of emoticons, not hardcoded anymore
yup, too many brackets
Merge remote-tracking branch 'upsteam/master' into style
Merge remote-tracking branch 'upsteam/master' into emoticon-preview
removed duplicated emoticons
fix #431, fix export cancels, and more debug prints
fixed #425
We handle .tox files (still need actual command line support)
fix compile warning, they are fatal to Qt Creator
Merge pull request #433 from dubslow/master

fix #431, fix export cancels, and more debug prints
fix #436
I learned some things: improve thread safety
Italian translation: update
auto away; needs UI
Merge branch 'pr439'
Merge branch 'pr440'
Merge branch 'pr441'
Merge branch 'pr419'