Added bulk richardson module from awips 1
Bug fix
Fixed docstring issue with bulk richardson number:
add crossvectors wrapper and test, pydoc is a bit sparse
Added density calculations wrapper to awips 1
add ctop f2py wrapper
Merge pull request #15 from rokuingh/master

add crossvectors wrapper and test, pydoc is a bit sparse.  also add ctop and test; pydoc needs a little more revision for style
Resync with matser
Merge remote-tracking branch 'upstream/master'