fixed darkened moon on dm8. #661

removed the shadow that was covering the moon in the bg and edited up a
bit.
updated map checker for dm8
Add OnReset for damage indication
Envelope preview: make last point editable
Small aesthetical changes
fixed last commit
Merge branch 'master' of https://github.com/SushiTee/teeworlds
fixed client clean up
fixed size of the tee hands
fixed ninja skin and skin part selection on missing part
made maps a submodule
some clean up
removed hookdir from snapshot data
removed some unused stuff
disabled the map checker for now
fixed some compiler warnings
use json format within the language index file
close workerthreads on shutdown
added missing json parser files
changed format of the countryflags index file to json