[Review] Request from 'wstephenson' @ 'SUSE/connect/review_140805_ci_with_rc1_'

Please review the following changes:
  * 96fff42 Remove old box definitions
  * 32533b4 Definition for rc1 box
  * bd565a0 Make installing the correct gem2rpm more robust
  * c3090d6 Use RC1 image for CI
  * 9398963 Merge pull request #153 from SUSE/review_140804_align_version_of_ruby_with_ibs_use_one_version_at_once
  * 371c6ee Merge pull request #152 from SUSE/review_140801_fix_for_bnc_889869_rc1_scc_registration_during_installation_failed_by_reason_that_the_ip_address_can_not_be_handled
  * 053085d update .travis.yml
  * 51892d5 update travis and Rakefile rubocop tasks
  * f1443f8 move rubocop.yml -> .rubocop.yml
  * c9bd343 Merge pull request #148 from lslezak/no_gzip_in_debug_mode
  * 462ca0c change test description
  * 1f6cdaa adapt the test case to reflect the description
  * b7a7996 fix for bnc#889869 - [RC1] SCC registration during installation failed by reason that the IP address can not be handled by Yast for submitting to server
  * f5b824b move setting HTTP headers to a separate method
  * 44064e4 disable gzip compression in debug mode