Merge pull request #60 from liuch/master

code optimization in HistoryDlg::displayResult
Partial fix for build in different dir
Merge branch 'master' of github.com:psi-im/psi
Doxygen update
update iris
Fix OS description in system info.

Affects only *nix systems where lsb_release is not installed.
Merge pull request #64 from tehnick/fix-os-desc

Fix OS description in system info.
Add detection of RFRemix into unixHeuristicDetect()

Affects only *nix systems where lsb_release is not installed.
(patch from Psi+, thanks to taurus)
Merge pull request #65 from tehnick/2020-psi-rfremix-sysinfo

Add detection of RFRemix into unixHeuristicDetect()
Update psi.desktop
Merge pull request #66 from tehnick/update-psi.desktop

Update psi.desktop
iris update
Merge branch 'master' of github.com:psi-im/psi
Added few patches from kopete
PongServer moved to iris
Removed pongserver from project file. (fix for previous commit)
Oops. one yet forgotten line
iris updated
iris updated
Iris updated (no bundled libidn)