update docs to show how to install a tagged revision
fix tests for command line client to be consistent with change to Created/Updated in commit e8146fbd99900b563e23710c45b9e5da6f41821a
add _local_keys to locationable subtypes to fix SYNR-610
rolled version to v0.5.1.dev2
Merge pull request #112 from cbare/develop

fix to test_command_line_client and docs