Revert "Updated README for new test utility API."

This reverts commit aec3df1da2eb0600e3415d0bd483a0528a6eaa6c.
Updated readme
Merge branch 'release/0.5.1' into develop
Merge branch 'develop' of github.com:atomicobject/kinetic-c into develop
Cleaned up botched readme
Merge branch 'develop'
Bumber patch version to release 0.5.2 for re-release w/fixed up README
Merge branch 'release/0.5.2'
Merge branch 'release/0.5.2' into develop
Merge branch 'develop'