Fixed 3 issues

 1. WEBKIT broken on (my) Ubuntu
  * Gemfile
  * Gemfile.lock

 2. SQLITE3 (steps -f- to -m-)
  * config/database.postgres.yml
  * config/database.yml (sqlite3 version)
  * app/models/project.rb

 3. Removed WARNINGS (-n- to -s-)
  * spec/controllers/projects_controller_spec.rb
  * spec/controllers/pull_requests_spec.rb
  * spec/controllers/users_controller_spec.rb

 4. Ran "rake" with my sqlite3 database.yml and got this:
  * Finished in 28.4 seconds
  * 135 examples, 0 failures
  * Coverage report generated for RSpec to /home/dell/Projects/24pullrequests/coverage. 1031 / 1087 LOC (94.85%) covered.
EOF
went back to posgresql in database.yml
delete dev comment line
Restored database.yml; Removed most version strs from Gemfile; jquery 2.2.+ breaks app
Added CR to last line of CONTRIBUTING.md to trigger Travis-ci
removed pw
Uninstalled QT5; capybara-webkit worked with bundler; Had to go back to earlier capybara gem; latest breaks 5 tests
Removed sqlite3 gem from Gemfile and ran rake with and without POLTERGEIST; both ran green
Add blank line to Readme.md to trigger Travis-ci
Merge pull request #248 from jasnow/master

Ported to sqlite3 and Ubuntu. Removed test run warnings.