add debug comments for GL init
add debug comments befor GL init
add more debug comments around image loading
fix a warning about an uninitialized var and let it not look like an argument
Merge branch 'master' of linz:/srv/git/lantea
Merge branch 'master' of linz:/srv/git/lantea
Merge branch 'master' of github.com:KaiRo-at/lantea