Upgrade .rvmrc to newest format and change to patch-level 290 of 1.9.2.
Upgrade .rvmrc to newest format and change to patch-level 290 of 1.9.2.

contently/backbone-rails,ArthurN/backbone-rails,codebrew/backbone-rails,codebrew/backbone-rails,codebrew/backbone-rails,contently/backbone-rails,ArthurN/backbone-rails,contently/backbone-rails,ArthurN/backbone-rails,ipmobiletech/backbone-rails,ipmobiletech/backbone-rails,ipmobiletech/backbone-rails,contently/backbone-rails