Rearranging for clarity
Add comments
Remove debugging print statement
Implement pandas methods for alignment and fill values
Implement alignment in binary operations
Make empty polygon default fill value
Empty point and polygon definitions
Remove commented code line
Be more selective about fillna for GeoSeries
Better to ask forgiveness than permission
Implement copy() method
Alignment test
Alignment test
Merge pull request #1 from kjordahl/feature-align

Alignment of series
Implement __contains__ operator
Test for __contains__ method
Implement standard set operators ^ | & -
Tests for set operators
Add intersection test
Merge pull request #2 from kjordahl/feature-operators

Implement set operators
Update NYC images to plot with current default colormap='Set1'
Just pass plot options from geodataframe to geoseries method