- Added a sleep to the thread manager wait methods. Stops the main thread from hogging the cpu on single-core systems.
- Added a sleep to the thread manager wait methods. Stops the main thread from hogging the cpu on single-core systems.

git-svn-id: 28d9401aa571d5108e51b194aae6f24ca5964c06@32215 8cc4aa7f-3514-0410-904f-f2cc9021211c

crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS