Version 1.0.0

[chochkov]

This PR:

• Removes the activerecord, activesupport, rspec dependencies
• Deprecates support for automated regression testing built based on rspec extension tests.
• Adds Travis CI integration (extension setup on Ubuntu is currently failing)
• Drops rake dependency on the user side and moves the functionality into the bin/dumbo executable.
• Fixes known bugs
• Completes & Extends the existing testsuite
• Updates Readme towards Version 0.0.1 functionality
• improve Rspec matchers in the specs - e.g. remove the SQL.gsub(/^ {6}/, '')
• Be aware of supported ruby/postgres versions and provide meaningful errors if used against unsupported version.
• Introduce integration testing (e.g. test the bin/dumbo executable possibly on a Docker image)
• Consider removing the requirement for config/database.yml. Instead have one ~/.dumborc config file with the DB credentials;

---

TODO:

• test DB.transaction { }

[zeitgeist]

Consider adding support for automatic generation of upgrade/downgrade tests as mentioned in adjust/pg-country#1