Merge branch 'release/0.6.3'
Merge branch 'release/0.7.0'
Merge branch 'master' into develop
Added initial scratchwork for URDF conversion
partial export implementation
Working 95% URDF export for current workflow
Cleanup and a few docstrings
Fixed limit and torque export
Added command line input and output
Fixed startup bug
Fixed achread example

Lost the setup script for the "ghost" robot during renaming before, so
that's been fixed. Run:

./openhubo --example achread.py

to see the example working.
Merge branch 'master' into develop
Merge branch 'feature/urdfconvert' into develop
Bugfix: Updated openmr plugin to match examples
Merge branch 'master' into develop
Small tweaks to setup and examples