Tweak the way cvars are displayed, fixes VM cvars showing empty
Fix dynamic new style Cvars not registering properly
Fix SIGFPE crash on func_door_model with speed property set
Fix eccf4722d9 (Cvar vtable problem)

The cvars would call virtual functions in the constructor which on some
compilers would cause segfaults (gcc). Move that call in the
registration of the cvar, which already has a workaround for that
problem.
Nuke g_extendVotesCount.
Use std::string for translation to avoid truncating long strings
Copy std::string to std::string not std::string::c_str()

Thanks kangz and specing for pointing this out!
Remove the startup cache, it is only useful for single player
Merge branch 'debian'
Bump version no.
Drop workaround for broken libsdl2-dev.
Kill messages: look up the class name earlier, use a temporary buffer

This should fix problems with the likes of “Dragoon” appearing on its own.
Merge branch 'gameplay/viech'
Some Mac build fixes
Disable some GL extension checks to make Mac builds work
Update Debian default rotation.
Merge branch 'gameplay/testing'