New branch for Spencer's re-structuring of DataForCalc and DataFromCalc into single Calculation class.
Added README file.
Move Calc and hierarchy_classes files into __init__.
Remove outdated or not-yet-implemented files.
Line breaks in design doc.
Switch to dicts-of-children structure for Project
New class names; functions list; master Proj; other updates.
Re-introduce DB scripts to this branch.
Added necessary physical constants to functions.py.
fixed calculation and suite classes
fixed data reduct, data range
Fixed various syntax errors.
Combining Leah's code updates in __init__ with Spencer's.
Merge branch '_langer_' of https://github.com/spencerahill/aospy into shillalpha
Implemented get_nc in Proj and its interface w/ Calc & CalcSuite.
Added Sukret's DB files.
Add Sukret's files.
Added Sukret's shell.
Merged shill2 back into Master