Add support for managing environment variables

v0.3.3

Bump version -> 0.3.3

v0.3.2

Add filter to allowed options on getBranchBuilds

v0.3.1

Bump version; add prepublish command

v0.3.0

Fix many, many bugs

Add `getBranchBuilds` method

0.1.1

Version 0.1.1 - Add `getBranchBuilds` method