rename Gaussian models and parameters
update tests to reflect name change
rename paramdim to param_dim
rename parnames to param_names
rename psets to param_sets
remove ratio, added y_fwhm to gauss2d
Added cov_matrix option to Gaussian2D
typo in cov matrix
Add test to make a 2d gaussian with a covariance matrix
attempt to refresh master
added init
fix import error
from future import now follows astropy guidelines
small changes according to astropy guidelines
got vos_catalog to work
use new str formatting for webquery
changed absolute to relative imports
moved vo server and client to new loc
renamed vo query to client; moved client and server to new package
work in progress