Ruby 1.9.3.

- Using Bundler to manage gem instead of Jeweler.
- Removed some gem deps for simplification.
- 1.9.3 compat: coerce Sequel's #all to array before calling #length
- 1.9.3 compat: const_get inheritance lookup.
Merge branch 'ruby-19'

Conflicts:
	ihoka-friendly.gemspec
Readme and Changelog updates