Add data test.
Some functions for utilities.
Add nodes shapefile for testing.
Several implementation and test for feature extraction.
Update data test.
some implementations of feature extractions.
implement utitilies function for testing.
better temp directory.
Add pseudo, sink, well, branch, wateshed, confluences.
coding standards.
Merge pull request #23 from ismailsunni/develop

Merge in Ismails work