adds rocon related info
travis: install PyYAML from pip?
travis: Fix python dependencies

It seems that if you install a python package using sudo (even through apt-get) the python interpreter does not get it without sudo.
travis: allow failures in py3.2

External dependencies do not run in Python 3, e.g. lisp message generator
Clarify dependencies for running tests
Merge pull request #10 from osrf/issue_10

Nosetest dependency missing
Merge branch 'master' of https://github.com/bit-pirate/capabilities into bit-pirate-master
fix a documentation warning
Add documentation on how to build the docs
fix bug by using the fully qualified names
Merge pull request #12 from osrf/issue_12

Tutorial not working - can't find provider for capability
Merge pull request #13 from osrf/issue_13

Add info about how to build the docs
Merge branch 'master' of https://github.com/osrf/capabilities into bit-pirate