Fix back button in login screen and fix 'move on uninitialised value in MusicInformation'
Fix back button in the register screen and login as guest
Fix back button size in guest login screen
Fixed display of players, thanks to auria.
Improve flying mode
Improve flying mode, part 2
Merge pull request #1303 from leyyin/master

Fix some bugs in the online screens
Adding new players now works.
On first time start the player is automatically asked to create a new
player with a sensible default name.
Fix bullet assertion failure
fixed identing, added comments, corrected spelling, etc.
Minor correction to patch from konstin.
Minor changes to the grand prix editor
Almost rewrite of GrandPrixData::reload()
small corrections in grand_prix_data.cpp
Merge remote-tracking branch 'origin/master' into new_login
Fixed compiler warnings.