[TASK] Configure Travis for better build performance * set sudo: false so Travis can use their new container-based infrastructure * enable bundler caching * Also remove the commented-out rvm 1.9.2 from .travis.yml as this version   has reached its end of life some time ago.
[TASK] Configure Travis for better build performance
* set sudo: false so Travis can use their new container-based infrastructure
* enable bundler caching
* Also remove the commented-out rvm 1.9.2 from .travis.yml as this version
  has reached its end of life some time ago.

ahtung/money-rails,Gusto/money-rails,AlexVPopov/money-rails,zaeem/money-rails,BookBub/money-rails,railsme/money-rails,railsme/money-rails,UniversalAvenue/money-rails,Nghi93/money-rails,agrimm/money-rails,proxv/money-rails,ahtung/money-rails,RubyMoney/money-rails,RubyMoney/money-rails,antstorm/money-rails,proxv/money-rails,ahtung/money-rails,agrimm/money-rails,BookBub/money-rails,RubyMoney/money-rails,Gusto/money-rails,Gusto/money-rails,humancopy/money-rails,humancopy/money-rails,railsme/money-rails,Nghi93/money-rails,humancopy/money-rails,ZenPayroll/money-rails,casiodk/money-rails,ZenPayroll/money-rails,ZenPayroll/money-rails,proxv/money-rails,agrimm/money-rails,UniversalAvenue/money-rails,AlexVPopov/money-rails,Nghi93/money-rails,AlexVPopov/money-rails,casiodk/money-rails,zaeem/money-rails,UniversalAvenue/money-rails,antstorm/money-rails,antstorm/money-rails,zaeem/money-rails,BookBub/money-rails,casiodk/money-rails