class declaration line in DebugStream and OutputStream changed to be compatible
with older versions of Python.
Merge branch 'master' of http://github.com/sim-x/simx
- Added the C++ HelloWorld application as a CMake target, for peformance comparison
- Modified Helloworld Python and C++ implementations for similar behavior
- Converted HelloWorld to simx namespace
- Added a Py_IsInitialized() check before importing Python modules (otherwise segfaults in a pure C++ simulation)
Commit HelloWorld cpp source files (forgot to check them in last time)
Added -fpermissive flag to work around gcc 4.7 compile errors.
Merge branch 'master' of http://github.com/sim-x/simx
- Added named variables to hello.py to make code more readable.
- Got rid of trailing '\n' in output stream which was causing double-spaced output files.
Changed char * to const char * in util.C:150 to get rid of "deprecated conversion from string constant to 'char*'" warning.
Playing around with boost python doc strings.
Improve cmake (a bit)
Removed stray character
 - Entity registration is not required any more.
 - Python namespaces are now supported for Entities,
 - Python class objects, instead of class name strings, should be passed
   to the create_entity function.
- Beginning to add some docstrings to classes that have been exported to Python.
Merge branch 'master' of https://github.com/thulas/simx

resolved following Conflicts:
	examples/HelloWorld/HelloHandler.py
	src/simx/Python/export.C
Minor mods.
Merge branch 'master' of https://github.com/thulas/simx

Resolved conflicts:
	src/simx/Python/PyEntity.C
Minor mods.
Merge branch 'master' of https://github.com/sim-x/simx

Conflicts:
	examples/HelloWorld/hello.py
Changed the way profile ids are generated. This will hopefully avoid
profile clobbering, but still not fool proof.
- Changes for staggered event creation. Uses greenlets (light-weight pseudo-threads)
  to for this.
- greenlet souces are not part of this commit. They have to be installed separately
  for this to work. In the future, I might make greenlets part of the distribution.