This one is worth reporting.
Fix some type conversions warnings.
Clean up handler management in sceNet.

Add 0, add 1, remove 0, add.. should be 0, not 1.
Also, undefined behavior on x = x > 0 ? --x : 0;
Shut up an incorrect warning.

It can never be undefined, but that's fine, the compiler can't tell.
Fix some minor warnings.
Cleanup initialization order.
Don't even need this var anymore.
Fix arithmetic warning in mpeg demux.
Report unsupported vertex formats, initialize.

Initializing mostly so warnings are happy.
Merge pull request #2698 from unknownbrackets/warnings

Warning fixes