ring_sound.h: split very long line
gitignore: ignore generated doxygen html files
Merge pull request #78 from baracoder/fix_74

Fix 74
remove report statistics:
- can be already collected indirectly at lobby server
- updates are already checked differently
Merge branch 'master' of github.com:springlobby/springlobby
remove introguide / link to online version / cleanup
make cache path of springlobby independant of unitsync / spring:
- this allow (re) use of cached images & stuff
- logs are written in one dir and not across all spring installations
- no need for unitsync to be loaded in most cases