Merge pull request #286 from SLsthompson/master

Simplified the "reload" method which had an extraneous dictionary.
Merge pull request #287 from SLsthompson/master

Cleaned up documentation related to installation and Contributing
Adds Debian/Ubuntu deb install instructions
Add CDNManager, which currently provides an account list
Implements basis of CDN and origin pull support

Supported commands thus far:
* sl cdn list
* sl cdn detail
* sl cdn load
* sl cdn purge
* sl cdn origin-list
* sl cdn origin-add
* sl cdn origin-remove
Resolve rebase conflicts and #pep8probz
CDN Initial tests and fixture
Some pep changes and logics

Add maximum constants
Minor CLI help corrections
Complete CDN tests for 100% coverage (alleged to be passing)
Fix string type checking in Python 3.x
Docblocks, copy-paste doc fix, and OCD placation (basically kidding)
Fixes typo
Merge pull request #288 from sudorandom/ubuntu-debian-install

Adds Debian/Ubuntu deb install instructions
Removes last_calls from SoftLayer.Client
Removes travis-ci irc notifications from the config (until it can exclude forks)
Merge pull request #292 from sudorandom/travis-notify

Removes travis-ci irc notifications from the config
Changes with proxy host and port
Merge branch 'master' into proxy.test
Proxy details accepted

Proxy can be specified as part of the command options.