Merge "Disable 64-bit Darwin platform build." into idea133
 Auto-merge: 5e25267

* commit '5e2526706be97ceee436e6f0b7e6c1c35619b851':
  Disable 64-bit Darwin platform build.
  Add '-accel <mode>' and 'no-accel' options.
  Add misc android/base/ helper classes.
  Windows: Fix libSDLmain compilation