[world] Add test for world
[CE3D] Add test for the whole construction

Uncomment the while(1) loop in test/world/world_test.cpp to see the
result. Attributes do not work yet.
[console] Removed kbThreadMutex
[console] Fix bug in console
[console_test] Add documentation comments
[console_renderer_test] Fixed comment
[renderer] Add Clear and Flush 'signals'
Merge pull request #98 from Makman2/fix

[merge] Minor fixes and enhancements
[test] Add tests for ConsoleDrawer and ConsoleMaterial
[test] Add testcase for ConsoleMaterial getter/setter
[test] Move test from world to renderer
[test] Add test for getters/setters of world
Merge pull request #99 from Makman2/fix

[merge] Fix
Merge pull request #97 from Makman2/world

[merge] World