Added a first-pass attempt at a SlateWriter.
It can be used by changing the config.format to 
include `:slate`
Changed slate extension to be markdown's ext
Pulled the example mustache content in to the 
index slate file.
Added a has_response_body? helper for mustache
file to check if it should output the response 
body headers.
Added a conditional around response_body output.
Conditional output of endpoint parameters.
Added a pretty JSON printer method to make the 
slate output more reader-friendly.
Updated slate index to include endpoint 
explanation.
Merge pull request #1 from xyzjace/slate_template

Added a first-pass attempt at a SlateWriter.
Added type field output for slate mustache
template
Removed as much BC-specific text from the slate
index template.
Merge pull request #2 from xyzjace/slate-sexifying

Further Slate Writer Additions
Added request_body and request_body pretty print
for usage in the slate template.
Hardcoded filtering of the cookie param for slate
examples as they're not used for our purposes.
Added sample_request section and jiggled the curl
header to make things look nicer.
Fixing an error whereby non-json request bodies were being parsed by JSON.parse
Merge pull request #3 from xyzjace/eig-finishing-touches

Finishing Touches
Add #endpoint description.
Style changes
Tweaked template