Merge pull request #1 from Sage/initial

Initial
added guard-rspec
Tests added for namespace_doc class
added pry
added route doc presenter
optional params now outputted
mass rename to grape_documenter
rename binary
update README
Merge pull request #2 from Sage/optional_params

Optional params
bump version
Extra features...

Added mounted_path option for api mounted not on root
Remove .format from generated route paths
Added optparse under the hood and users passing in options is nicer
Merge pull request #3 from Sage/minor_features

Extra features...
version bump
Fixed long params
params heading now reads as required
removed description heading
parameters table given a class
adding colour to rspec
able to infer title