Merge pull request #76 from Narnach/rails3.2.13

Rails 3.2.13
Version bump to 2.0.6
Regenerate gemspec for version 2.0.6
#60 Adding multiple database support through custom configuration files.
#60 Increased version to 2.1.0.
Merge pull request #78 from morcmarc/develop

Multiple database support
Cleanup other db configuration on after block
Regenerate gemspec for version 2.1.0
Fix merge conflict from morcmarc's pull request
Regenerate gemspec for version 2.1.1
Support/require ActiveRecord 4.0.0.beta1

Two files needed changes to make the specs pass.

* lib/standalone_migrations.rb:

	`rake db:create` was ignoring ENV['DB']. It seems like ActiveRecord now loads the DB configuration from `ENV['RAILS_ENV']` when it is required, which it did not do before. Setting `ENV['RAILS_ENV']` before requiring ActiveRecord ensures it has the intended environment.

* spec/standalone_migrations_spec.rb:

	Newly created migrations now use `change()` instead of `up()` and `down()`. Updated specs to expect/use the new behavior.
Re-generated the gemspec to have the new activerecord 4.0.0.beta1 dependency
Updating to support ar/railsties 4.0.0
Upgrading to Rspec 2.14.1 from 2.7.0
Fixes loading database configuration properly for ActiveRecord 4.0.0 in specs

* Also resolves several deprecation warnings in specs
* Adjusted alignment of a few hash methods
Updating .gitignore for rbenv/rvm .ruby-version files