GitLab

Removing compiler flag for 64 bit compat checking (causes warning)
Fixing xinput axis enumeration - was not incrementing counter

Making xinput/xbox support optional (defaults to false)... don't force OIS users to have to distribute yet another possibly unwanted redistributable.

Fix xbox centering... Don't account for xbox deadzone before marking axes as moved... or else a quick movement from extent to zero will not be registered... left dead zone for app to determine.