Add install generator spec
add next_migration_number instead of extending ActiveRecord::Generators::Base, but defer to ActiveRecord
Add generator_spec development dependency to gemspec
support rails 4.0 and 4.1
Merge branch 'master' into commit-to-rails-40-41

Conflicts:
	.travis.yml
Merged master into add_spec_for_generator branch
update jack_hammer to support 4.1
remove unused code
Add dependency on railties
Merge pull request #3 from envato/add_spec_for_generator

Add spec for InstallGenerator
make these things strings so that postgres doesn’t have a heart attack
Merge pull request #5 from envato/commit-to-rails-40-41

Support rails 4.0 and 4.1
not needed
Merge pull request #8 from envato/clean-up-gemfiles

We dont need a gemfile for 3.2.18
Merge branch 'master' into prefix_database_tables
Fix up spec and migration file