#40 Full patch to build on OSX 10.5

[Alfred Morgan]

This patch contains all the modifications I made so I could get python-ogre to build on os x 10.5

patched svn version 1045:
* changed curl check to use the which command since curl --version (and --help) return exit status 2 causing the test to fail in leopard.
* used sed_ variable
* updated cmake version to 2.6-4
* sed was missing an argument (used sed_ var)
* removed download dependancy of boost-jam
* changed boost path
* used -p when using mkdir command
* removed extra compiler string from libboost_python
* uncommented ResourceGroupManager in generate_code since mac still uses Ogre 1.6.1
* removed ogreoggsound and ogresdksample from the setup.py install process since they were failing

[Alfred Morgan]