Merge pull request #114 from andrew-plunk/working

Add eq and ne to the Node class
Fixed an issue (#110) that was causing the purge from CDN command to
fail.
Fixed broken test.
Refactored the tenant name/ID into the base identity class.
Added unit tests for identity changes.
Improved unit test coverage for several modules.
The fetch_object() method was not raising the correct exception when the
requested object/container combination does not exist.

Issue #109.
Added unit test for issue #111.
Added the update() method to modify existing load balancers.
Updated the class docs
Bumbed the version number and added release notes for 1.4.7
Merge branch 'working' of github.com:rackspace/pyrax into working
Updated the class docs
Version 1.4.7 - various enhancements and fixes. See the RELEASENOTES.md
file for details.
Merge branch 'master' into working
ALlow single passing a single node and virtual_ip to create a load balancer.
ALlow single passing a single node and virtual_ip to create a load balancer.
Merge branch 'working' into pyconau
Coverage ignore rules (the --cover-package only seems to filter the ascii report, not the collected data)
remove dependency on coveralls, fixes #118