updating c++ code to ansi c. Initial commit
Moved everything into an lacosmicx subfolder
Added __init__.py file
Laxutils converted to C. Documentation added to laxutils. Now builds with top level setup.py file.
Finished documenting laxwrappers and laxutils.
Moved memory allocation from c to Cython so that the output arrays will be garbage collected properly.
Fully documented stable version