Fixes ci-helper install_gem logging.

Now prints the correct name rather than 'calabash-cucumber'
Bundle install, then rake install

Don't $ bundle exec rake install; we need to do what
a user would do.
Adds XTC test resources
Ignore .env files.

It is common to store private configuration data in .env files.
In this case, we allow for the option of storing private XTC
information in a .env file in test/xtc.
Adds CI script for submitting XTC job
Adds stubs for XTC job in Travis CI

Testing has shown that we need a device set strategy.
This CI step is disabled for now.
Merge pull request #481 from calabash/feature/travis-ci-should-sumbit-an-xtc-job-part-1

travis ci should submit an xtc job part 1