H-uru/Plasma — pull request #453 by Deledrius (2014-10-13 00:00:31+00:00)
Title: Simplify automated build process.

Fixes a few oversights that cause problems when building from scratch on a fresh system.
- Adds a new default search location for PhysX.
- Disables non-essential projects which have non-trivial dependencies (which we do not currently provide).
- Adds user-friendly feedback when CMake cannot be found in the system path.