Documentation updates, minor changes in tcp_connector_test

Merge pull request #57 from connectivecpp/develop

doc updates, tweaked tcp connector test sizes

Documentation updates, file cleanup

Merge pull request #56 from connectivecpp/develop

Documentation updates, add image files to Doxyfile

Initial release after reorganizing repos

Merge pull request #55 from connectivecpp/develop

Working on Doxygen gen