v1.2.10

Incrementing patch version to 1.2.10

v1.2.8

Updating README to be more friendly

Filtering, environment variable token detection, token validation

Changelog:

• f408c30 Adding token validation to CircleAPI class [#3]
• 3bb3f78 Adding ability to use CIRCLE_TOKEN environment variable as token override [#4]
• 8263fef Adding subkey filtering (using dots)
• ee8d463 Adding basic filtering