Trivial doc/whitespace fix.
Fix ResourceManager exception messages.

- Print derived class name instead of the less descriptive and more cryptic
  base class name. Eg.

  "hardware_interface::JointCommandInterface"
  instead of
  "hardware_interface::ResourceManager<hardware_interface::JointStateHandle>"
Merge branch 'hardware_interface_rework'
Restore documentation of handle parameters.

Documentation that was previously in the interface classes before the
hardware interface rework has been moved to the handle classes.
Update README.md

Move examples out of readme and into ros_control's wiki.
Merge pull request #57 from jhu-lcsr-forks/master

Fixing inline comment
Merge pull request #59 from pal-robotics/master

Documentation and log message improvements
Merge pull request #61 from adolfo-rt/patch-1

Update README.md
Update Doxygen examples with recent API changes.
Fix compiler warning (-Wreorder).
Merge pull request #62 from pal-robotics/master

Update Doxygen doc, fix compiler warning.
Fix package URL in package.xml
Merge pull request #63 from pal-robotics/master

Fix package URLs in package.xml