Remove unnecessary VERSION.txt file
Move credits to README
No reason to attempt to open VERSION file anymore
use RST license
Convert geointerface doc to rst
Attempt to add syntax highlighting
Remove useelss install doc
Remove useless dependencies doc
Convert changelog to RST from TXT
include all rst in package_data
Merge pull request #17 from frewsxcv/feature/cleanup-core-docs

Cleanup core docs