CLC-notask-debugger-gem

Require ruby-debug gem in an oddly named group ":shell_debug".
The reason for the group is to have the gem loaded without forcing
it into runtime, which would cause problems for developers using
RubyMine, like Ray.

With this change,
- the rails server can be started in debug mode with the --debugger flag
  > rails s --debugger
- the debugger can be run with rspec by using the --debug flag
  > RAILS_ENV=test rspec spec --debug

It's kind of lame that the flag name is different for rails s and rspec,
but it works.  The important thing is that the ruby debugger can now be
enjoyed by RubyMine IDE users and regular old command-line folk, like me.
Thanks Ray, for your help in finding a solution that works for everyone!

group :shell_debug do
  gem 'ruby-debug', '>= 0.10.5.rc9'
end
CLC-2923 - IMPLEMENTATION: New Splash page design
https://jira.media.berkeley.edu/jira/browse/CLC-2923
Merge pull request #1976 from christianv/CLC-2923b

CLC-2923 - IMPLEMENTATION: New Splash page design
Merge pull request #1975 from chikoon/CLC-notask-debugger-gem

NOJIRA Ruby debugger working compatibly with command line and RubyMine IDE
NOJIRA Drop Fall 2013 as current term for bCourses
Merge pull request #1977 from raydavis/termsfix

NOJIRA Drop Fall 2013 as current term for bCourses
CLC-3064 Un-ignore Bearfacts testext tests
Merge pull request #1978 from ctweney/clc-3064

CLC-3064 Un-ignore Bearfacts testext tests
CLC-3044 - Textbooks: need a spinner while data is loading
https://jira.media.berkeley.edu/jira/browse/CLC-3044
CLC-2243 Removed unused Backstage, Trinidad, and Celluloid code
Merge pull request #1980 from christianv/CLC-3044

CLC-3044 - Textbooks: need a spinner while data is loading
CLC-2243 Remove non-Java Gemfile.lock updates
CLC-3062 - Textbook list does not contain a list to the campus bookstore
https://jira.media.berkeley.edu/jira/browse/CLC-3062
[CLC-3029] Fix failing TextbooksProxy test
[CLC-3063] Textbooks: cover image is missing
Merge pull request #1983 from haroonrasheed333/CLC-3029

[CLC-3029] Fix failing TextbooksProxy test
Merge pull request #1984 from haroonrasheed333/CLC-3063

[CLC-3063] Textbooks: cover image is missing
CLC-3069 - CFV - Button isn't rounded correctly when there is only 1 tab
https://jira.media.berkeley.edu/jira/browse/CLC-3069
Merge pull request #1981 from ctweney/clc-2243

CLC-2243 Remove obsolete Backstage, Trinidad, and Celluloid code
Merge pull request #1982 from christianv/CLC-3062

CLC-3062 - Textbook list does not contain a list to the campus bookstore