Fixed compile-time problems:

 * (Using CSPICE version N.0064, GCC 4.0.1, Mac OS X 10.5.8)

 * The function dafrfr_c has a parameter named 'free'.  In the PySPICE
   wrapper the variable 'free' shadows the C stdlib function free() and
   causes a compilation error.  Fixed this by adding a function
   fixNameCollision() in mkwrapper.py which checks a variable name
   against a list of RESERVED_NAMES; if the variable name is in the list
   it appends a '_' character to avoid the name collision.  Future
   collisions can be fixed by adding new names to RESERVED_NAMES.

 * Added gfevnt_c and several other functions to mkwrapper.py exclude_list.
   These functions take a callback in their argument list, and mkwrapper.py
   doesn't know how to parse callback function types, causing syntax errors
   in its C output.

 * Added generated files 'spicemodule.c' and 'build' to .gitignore so they
   don't show up in 'git status' output.
Put main logic into main() function.
Updated mkwrapper.main() to return buffer.

This allows the ability to call the function and get the buffer rather than it
printing to stdout.
Updated setup.py to check for CSPICE library.

The setup.py now automatically calls the wrapper generator and can properly
name the cspice.a and csupport.a files when needed.  It needs to either have
the cspice directory in the project root or have the environment variable
CSPICE_SRC set.
Added ability to build cspice libraries.
Updated README
Updated README to restructured text
Added .rst extension to README.
Removed -I and -L flags in build instructions
Typo
Updated setup.py to add -I and -L paths based on CSPICE_SRC
updated README
Removed indentation leaking into spicemodule.c
Cleaned up warning in mkwrapper.py
Removed $Id$ from file comment block.
Renamed test module so nose can find it
Fixed up tests.
Added tests for SpiceException

Tests ensure SpiceException is raised properly within the C module.
Updated how SpiceException is raised.

When a SpiceException was being raised, a new Exception object was being
created every time.  This did not allow the Python side to correlate that
exception with the SpiceException object in the module since they were distinct
objects.

This patch creates a global reference for SpiceException and it's the one being
thrown when an error occurs.
Updated code blocks in README