[Review] Request from 'xystushi' @ 'xystushi/git-review/review_130910_show_console_command_in_debug_mode'

Please review the following changes:
  * 0f05d5c Show console command only in debug mode.
  * dffec3f bring back console debugging command
  * 8fc829e Remove Gemfile.lock
  * 4b33630 bump version in gemspec
  * 62f0b7e 2.0.0.alpha release
  * 31eecaf Skip this test until problem solved.
  * 12222de Update commands_spec.rb
  * e401511 GitReview::Github.github.login is the safest way to get username.
  * 3db0dad Use github.login instead of user.name for head
  * 2d7a271 Merge pull request #68 from xystushi/check_duplicate_pr_and_use_gli
  * 909a4f7 Remove byebug from development_dependency, as it's not compatible with Ruby 1.9.3.
  * d4f1cad Use GLI to parse command line options.
  * 100f2a6 Don't create pull request if one already exists for the source branch.