Added non-sky projections to TODO
Define our own axis artists rather than use axisartist. This is still work in progress.
Improvements to grid handling
More docstrings and implemented coords.grid()
Initial implementation of labels
Simplify code for keeping track of tick locations and add files that were missing from the repo.
Fix label plotting
Added prototype for automatic range finding
Fix padding of text labels
Implement proper checking of tick positions along axis
Fix line wrap
Small code reorganization and allow tick and tick label sizes and color to be set
Separate out tick labels code into a Text subclass
Adjust coordinate_range.py so that it respects the x_angle and y_angle options
Implemented support for non-spherical projections
Avoid duplicate code
PEP8
Made select_step_ functions more robust and added tests
Users should never set the facecolor of grid lines
Make aliases for 'ra' work (instead of 'ra--')