Bump to 2.3.0.beta.2.
Rename class extensions to _rgc_XXX.
This more clearly defines what is in the example instance and what is
in the context.
Fix natural assertion configuration issues.
Better naming in metrics.rake.
Simplify some more code.
Oops, remove debug statement.
Support do/end blocks with natural assertions.
Improve failing spec examples.
Add lib/rspec/given to the backtrace clean list.
Add requirement that a block must have content.
More README changes.
Update readme with natural assertion info.
Add additional failing examples.
Add sorcerer and ghpreview dependencies to gemspec.
Bump to version 2.3.0.beta.1
Start of README updates for Natural Assertions.
Add configuration for Natural Assertions.
Handle expect(...).to syntax
Simplify source a bit.
Add a sample failing spec.
Messages for binary operations.
Move failing examples to identifiable location.
Baseline natural assertions.
ghpreview and bluecloth are in the dev section of the Gemfile.
Sorcerer has been put in the optional section.
Corrected spelling of instance variable.
Added explicit requirement for 1.9 to gemspec.
One eval to get both file and line.
Better calling sequence rdocs.
Add specs for extensions.
Moved setting of _rg_run closer to detection.
Also require _rg_run to be true, rather than just defined.