Fixes #381\nFirewall orders now take into account redundant interface pairs (or any other interface groups) when determining which firewall to order for a server
Removed unneeded parens and adde a docstring
fixes #381.
Additional commit to indicate a corrected build fixing this issue
fixes #381. Making pep8 happy
Merge pull request #382 from SLsthompson/master

Fixes #381 - Firewall orders with interface groups
Fixes test failures due to requests changes
Adds notes/references to the requests lib issue
Adds common CLI options at all levels
Fix for issue #383
Adds CONTRIBUTORS file
handle the case of missing billingitem in subnet cancel
changing error raised
changing error raised
changing error raised
pep8 happy
pep8 happy
Reverts tests because Requests 2.4.1 was released
Merge pull request #390 from Neetuj/issue389again

handle the case of missing billingitem in subnet cancel
Fix doc error
Merge pull request #392 from underscorephil/391

Fix doc error