Attempt to fix Travis error message.

+ Travis states "A sender (Return-Path, Sender or From) required
  to send a message" when a user is created.
Remove Ruby 1.9.2 since Capybara requires Ruby 1.9.3.
Temporarily disable Jasmine tests.
Configure Jasmine integration.

+ Source: http://iany.me/2013/01/rails-javascript-test-with-jasmine-gem/
Configure Jasmine continuous integration.

+ Source: http://iany.me/2013/01/rails-javascript-test-with-jasmine-gem/
Add failing test to verify Travis works.
Remove failing test since Travis works.