Bump Scala from 2.10.5 to 2.10.6 for Travis CI
Bump Scala from 2.10.5 to 2.10.6 for Travis CI

Problem:

The Travis CI builds use Scala 2.10.5, but our build.sbt and Build.scala files use 2.10.6. We should bump the Travis builds to use 2.10.6.

Solution:

Bump the .travis.yml files to 2.10.6.

Result:

Travis CI uses 2.10.6 rather than 2.10.5.

RB_ID=781291

syamantm/finatra,twitter/finatra,twitter/finatra,syamantm/finatra,syamantm/finatra,twitter/finatra,syamantm/finatra