Package Filtering: Fixing some javascript bugs
headpin-envcv - always allow cv access in headpin mode

headpin-envcv - fixed for nil

headpin-envcv - fixed for false
Travis: Decreasing jobs from 4 to 2

Decreasing the number of jobs in Travis from four to two (per Ruby version) in
hopes of speeding of our test suite.
Merge pull request #2714 from daviddavis/temp/1375452448

Package Filtering: Fixing some javascript bugs
Merge pull request #2713 from thomasmckay/headpin-envcv

headpin-envcv - always allow cv access in headpin mode
Merge pull request #2707 from daviddavis/less-jobs-more-faster

Travis: Combining jobs