Renamed pdf and cdf methods to respecitve get methods. Moved return statement in these methods so computed (or cached) result is always returned.
Removed unused sum variable in RTGM. Removed alternative CDF method in FraglityCurve.
Corrected several compuation methods.
Added service file for web service. Added tests for new service file. Corrected old tests based on new expected output (due to corrected stats methods). Added rewrites to gruntfile and pre-install for human-readable URLs.
Fixed test for loglogy.
Merge pull request #4 from emartinez-usgs/SD-28

Sd 28
Some testing to see why travis broke.
More debugging to figure out travis.
Trying installing PHP for Travis.
changed installed package for php. also, trying a search.