Add adabot For Auto-updating Libraries/Contrib Info

[sommersoft]

The next (last?) part to #119.

Two environment variables will need to be added to Travis:

• ADABOT_GITHUB_ACCESS_TOKEN: self explanatory
• CP_ORG_UPDATER_RUN_DAY: Sets the day of the week that the script will actually run. Day is a number between 0 & 6, with 0 being Monday. (Travis cron will be set to run daily. This ensures the script runs on the day we want since Travis won't guarantee that a weekly cron will run on a certain day.)

I was unsure that the rvm stuff in the original .travis.yml was necessary, since the script section is empty. If its not needed I can remove it. Also, I just thought about this: I could also exclude it from the daily cron, using the $TRAVIS_EVENT_TYPE env var if need be.

[kattni]

Thanks for doing this! Looks great! I'll wait on @jwcooper to comment on the rvm bits in .travis.yml to merge.

[jwcooper]

You can remove the unused bits. I think rvm is not needed there, likely a remnant from originally setting up the site.