Removed syn prefix from synphot modules. Updated affected tests and imports. Updated init to avoid namespace conflict with astropy.config module.
Fixed compatibility with latest astropy dev version. Added synphot.cfg to gitignore.
Merge pull request #46 from pllim/remove-syn-prefix

Removed syn prefix from synphot modules.
Added analytic spectra classes that use astropy.modeling and related tests. Minor codes and docs updates.
Fixed Python 3.3 contiguous array error. Modified BlackBody1DModel to work properly with latest astropy.modeling changes.
Replaced OverlapError with PartialOverlap for exceptions involving partially overlapping spectra.
Replaced local wave_conversion equivalencies with astropy spectral().
Updated flux conversion to use astropy spectral_density() equivalencies when possible.
Moved flux conversion from spectrum.py back to units.py and hopefully has no circular import error on Python 3.
Added analytic to convenience UI import.
Sync with astropy doc organization that replaced _generated with api directory.
Included long C-extension docstring in documentation.
Fix Travis failure for Python 3 because of xrange
Merge pull request #48 from pllim/analytic-models

Analytic models etc
Fixed 4 failing tests due to astropy/astropy#1680 by explicitly setting param_dim in class factory.
Merge pull request #49 from pllim/modeling-paramdim-error

Fixed 4 failing tests due to astropy.modeling API change