Fix gemspec for missing and incorrect requirement

- json is only used for tests
- rails is used in ./lib/remote_user_auth_engine.rb
- openshift-origin-common in ./config/initializers/openshift-origin-auth-remote-user.rb
Merge pull request #1858 from mscherer/fix/gem_spec/auth_remote

Merged by openshift-bot
Update outdated links in 'cartridges' directory.

Addresses Bug 928675
<oo-accept-broker> Fixes to generalize over RHEL and Fedora

Wrap ruby and bundler in functions to achieve platform-appropriate
invocations (scl vs. standard), detect scl presence
<oo-accept-broker> cleanup, documentation comment

Comment explaining why ruby output in load_application_values is run
through tail
Merge pull request #2181 from BanzaiMan/dev/hasari/bz928675

Merged by openshift-bot
Bug 954317 - rhcsh test for V1 vs V2 failed
Merge pull request #2182 from dobbymoodge/oo-accept-broker

Merged by openshift-bot
fix spec
Bug 954283
Merge pull request #2183 from jwhonce/wip/raw_envvar

Merged by openshift-bot
Merge pull request #2184 from bdecoste/master

Merged by openshift-bot