Merge pull request #27 from bernie-simon/bsimon-python-test-speedup

Modify a failing test to use 1904-77_TAN.fits
Merge pull request #28 from bernie-simon/master

Trivial changes to trigger re-test by Travis
Merge pull request #29 from bernie-simon/bsimon-travis-config

Update the travis config file to the latest version to see if it fixes t...
Fix documentation warning.
Merge pull request #30 from mdboom/doc-warning

Fix documentation warning.
Update version number and package name in setup
Rename package to stsci_sphere instead of stsci.sphere