Update contributing guidelines
Add #scope method to array, update version
Add version 2.1.5
Update gems
Add note that 0.1.3 not production ready
Fix error in gemspec, update version
Update gems
Update gems... again... I guess
Update outdated information about installing
Add definitions of #blank? and #present? for Object
Update version after fixing error
Add #stringify_keys and #symbolize_keys methods, expand array scoping, update to v. 0.2
Update documentation
Fix require structure in spec helper
Fix problem with requires
Update gems