Commit from LXDE Pootle server by user KlemenKosir.: 285 of 356 strings translated (0 need review).
Merge branch 'master' of git.lxde.org:/lxde/lxqt-panel
Commit from LXDE Pootle server by user Pjotr.: 356 of 356 strings translated (0 need review).
Merge branch 'master' of git.lxde.org:/lxde/lxqt-panel
Commit from LXDE Pootle server by user H.Humpel.: 78 of 305 strings translated (0 need review).
Merge branch 'master' of git.lxde.org:/lxde/lxqt-panel
Port to KWindowSystem. Purges Qt4.
Commented line that was causing high CPU and memory usage

KWindowSystem's windowChanged signal is called zillions of time for each
window, and the taskbar updates the icon everytime, causing the problem.
Commented the line for now.
CMakeLists.txt cleanup
worldclock: get rid of ICU
Reset calendar's selected date when showing. Fixes lxde/lxde-qt#322
Fix taskbar window filter
Update Russian translation
Fixes lxde/lxde-qt#325. Drop .desktop files on quicklaunch
Fixes translations not being loaded.

A macro in on it's way to solve problems like these.
Merge branch 'master' of git.lxde.org:/lxde/lxqt-panel
Commit from LXDE Pootle server by user KlemenKosir.: 360 of 356 strings translated (0 need review).
Commit from LXDE Pootle server by user rago1975.: 39 of 39 strings translated (0 need review).
Commit from LXDE Pootle server by user rago1975.: 57 of 57 strings translated (0 need review).
Commit from LXDE Pootle server by user rago1975.: 21 of 25 strings translated (0 need review).