refactored code for nrao
Added setup_package.py
Added data for tests
Added nrao tests
updated nrao.rst
Made items configurable
Added remote tests to nrao
degrees->degree
Added fix for format with numpy1.5
rename nvao to nvas
further restructuring from nrao to nvas
moved docs to toplevel
restructured docs
Add fix for returning payload from sync methods
Added test for payload return
Fix argument handling in irsa.Irsa.query_region

* The default spatial query type (spatial='cone') was incorrectly
  capitalized (should be spatial='Cone'), so that using the default
  always caused an empty result set.
* An 'else' clause now catches completely unrecognized spaital query
  types.
* Coordinates are now formatted in a way that is recognized by the Gator
  service.
added period at end of docstring
minor modifications to tests accordingly
fixed login url
Merge pull request #146 from jdnc/nrao

Refactoring for the NRAO module