Disable parallel bundle installs causing failures on rbx

https://github.com/travis-ci/travis-ci/issues/2821
https://github.com/mvz/rubocop/commit/345a90957c2f16861356d887e23733a43f85ca56
Merge pull request #12 from brandondunne/disable_concurrent_bundle_install

Disable parallel bundle installs causing failures on rbx
Use TLSv1 instead of SSLv3 to connect to provider

SSLv3 is being phased out due to POODLE attack
Latest version of rest-client.

ssl_version option was added to manageiq vendor/gems/rest-client in 2012
The vendored gem was moved into manageiq/rest-client repo.

#ManageIQ/rest-client@0354d26

The patch we applied: L2G/rest-client-fork#3 was basically 123
rest-client/rest-client#123 was added to rest-client 1.6.7 but later removed
final: rest-client/rest-client#140 (which has since been tweaked)
Merge pull request #11 from kbrock/gem_restclient

Use Latest version of rest-client
Merge pull request #10 from kbrock/poodles

Use TLSv1 instead of SSLv3 to connect to provider
Release v0.2.1