Refactor Post for args and body

Removed PostForm as it isn't needed. pulled common bits betwen getwithparams and post
into it's own method.

Should support partial search now (example/doc needs written)
add test for buildQueryString
superfical reodering of methods
Merge pull request #19 from spheromak/post

Refactor chef.Post for args and body
add test for partial search on post
Merge pull request #21 from marpaia/test_partial

add test for partial search on post
Update README.md
Add support scripts for regenerating goiardia data

Goiardi changed the on-disk layout of data in the last build. This adds
`test/support/regen_data.sh` which will wipe out the data and re-populate
a goiardi server from the data stored in test/support/chef.

Requires the workstation have knife and Berkshelf3 installed to work right. (chefdk)
Merge pull request #26 from marpaia/regen_data

Add support scripts for regenerating goiardi data
enable TestGetEnvironmentRole

goiardi supports this now so we will test it
TIL: how to pars a json http body in go
Issue-16 resolves #16 ConnectUrl seems unused
Merge pull request #27 from bradbeam/issue-16

Issue-16 resolves #16 ConnectUrl seems unused