Skare 0.15

- Ska.engarchive 0.21 to 0.22: Allow remote Windows access to archive (M. Baski)
- Chandra.taco 0.1 to 0.2: Allow for reproducible ACIS FP predictions
- Xija 0.2.7 to 0.3: Allow for different pitch bins in SolarHeat model
- Chandra.Time 1.14 to 1.15: Fix a bug in GRETA time conversion
- Matplotlib 1.2 to 1.2.1: bug fix release
- Pyger 0.2.7 to 0.3.0: Add Xija MinusZ model
- Astropy 0.2: http://astropy.org