Release 2.0.2

Changes since 2.0.1:
- Fixed a bug where the process would sometimes use 100% of one cpu.
- Added separate compiler flag variables for the *nix and PE parts to the
  Makefile.
- Fixed some commands in the Makefile not using the DEBUG_/RELEASE_-prefixed
  variables.
- Fixed a few build problems.
- Complete rework of the double-spawn code.
- Clean up and refactoring of the code.
- Fixed a missing return when making the process a system process failed.
- Fixed threading code calling the stop function in thread_stop when starting
  the thread failed.

.version

@@ -1,3 +1,3 @@
 major_version=2
 minor_version=0
-patch_version=1
+patch_version=2