remove hardcoded password from dummy database.yml
add travis config file
rspec ~> 2.12.x
refactoring
run travis against ruby 1.9.3 and 2.0
require all activesupport gem
add rails and mysql2 dev. dependencies
Merge branch 'master' into elia/loadable

Conflicts:
	.travis.yml
	dbmanager.gemspec
	lib/dbmanager/dumpable.rb
	lib/dbmanager/importable.rb
replace Runnable module with Runner class
refactoring + more Runner specs
refactoring specs