fix(ruby): added gemset, ruby-version
fix(doc): Updated docs for new version.
fix(gem): loosened dependencies on gems

* There was nothing strange being used in these gems that required
specific versions
fix(doc): bumped version, general cleanup
fix(guard): inheriting from Plugin, as per Guard 2 requirements

* Updated initialize method signature to match new reqs.
fix(gem): bumped version to 0.3.0
fix(guard): passing correct options to guard-rspec
fix(delayed): require guard/plugin as per Guard 2 reqs
fix(rspec): removed unused color_enabled config
fix(rspec): upgraded to `expect` syntax
fix(rspec): simplified guard-rspec options
fix(spec): updated spec_helper to work with new Rspec
fix(spec): updated specs for root option to use `expect` syntax