Merge pull request #39 from guidow/software_as_top_level_entity

Software as top level entity
reverting changes to .travis.yml from #39 (we do need to add a better way of doing this after the upcoming merge)
typo fix
wrong egg name......
WIP API endpoint for tags
Work on agents in tags api
Renamed api.tag to api.tags

A plural form is more consistent with the other modules in the same
package.
Post endpoint for agents-in-tag api
Removed debug log statements
Rename AgentsInTagAPI to AgentsInTagIndexAPI
Docstring updates
Use plural for tag in api endpoint for consistency
Merge branch 'tag_api' of github.com:guidow/pyfarm-master into tag_api

Conflicts:
	pyfarm/master/entrypoints/master.py