Install the capability_server script
adding notion of default provider

You can set the default provider for interfaces
using ROS parameters. The default provider is
injected into the interface object, and is now
passed via the service call.
Merge pull request #6 from osrf/issue_6

Support for system default providers
Update README.rst
add support for coveralls
Add missing dependency on rospkg
add missing dependency on std_srvs
Check for failing tests
Testing why coveralls isn't working...
fixup
Moving unittests down a level
Update README.rst
Adding coveragerc to limit reporting scope
Merge branch 'master' of https://github.com/osrf/capabilities
Use different coveralls program
Only test python2.7, makes CI faster
Update README.rst
Install capabilities.specs python subpackage
Merge branch 'master' of https://github.com/osrf/capabilities
add missing dependency on std_srvs