consolidated quadrature rules and data
incorporated constants.py into tens.py
removed hydra detector GUI modules since they were not yet usable
made imports explicit in wx modules; pyplot reference removed
made Experiment imports explicit
finished removal of import *
begun testing framework
developing test modules for q2db and q3db

* added tests for 2d and 3d quadrature rules
* moved imports to top in q2db and q3db
* added "available" array to q1db
* fixed indexing error in q2db.qloc4
added assertions and simplified output
explicit imports for orientations.py
Merge pull request #18 from donald-e-boyce/star-imports

Star imports