Add configuration file for Travis CI

Set up Continuous Delivery for App Ideas, both staging and production, in Heroku platform.
Include documentation for the project

Also provide user stories and other developer specific information.
Merge branch 'doc' into development
Establish schema.rb for Travis

Travis build failed due to missing schema.rb: generate it by running rake db:migrate
Merge branch 'ci' into development
Add 'pg' gem for Heroku and necessary configurations

Also, add a Build Status tag to README.md as a bonus.
Merge branch 'ci' into development
Move Sqlite3 gem to test and development scope
Merge branch 'ci' into development
Update Ruby version to Gemfile

Travis log gave a warning about this. Also modified the configuration
file for the databases.
Create Idea table by Scaffolding

Include name and description.