Merge pull request #1075 from PsychoGod/onemore

one more centering window in graphics
fixed frozen GUI caused by popups
fixed client crash on removing friends. Closes #1077
Merge branch '0.6' of https://github.com/teeworlds/teeworlds into tdtw_0.6

Conflicts:
	src/game/client/components/menus_browser.cpp