dependencies check
old replays don't crash the game anymore
Added pinwheel of death FAQ when starting for the first time
Updated FAQ (markdown)
+Windows XP
Fixes milestones link
#8493
Grammar & spelling cleanup
It is "No suitable renderers were found." nowadays
Added notice about suddently missing replay and Log files
portable installation has been disabled in release-20140608 to avoid just that
never do a portable install into %ProgramFiles%