Start to setup reading in Smyth's Grammar
Add underline css class
Add example section to sg_labels.json
Add visual cue when an sg label can be clicked
Only request grammar when it's even possible
Add second example section to sg_labels
Make sg label clicking act like a toggle
Skeleton for sgGrammar retrieval
Fix route for sgGrammar resource

We're not allowed to access the other server.
This is just for debugging, eventually we'll want a more specific
document (leads just to the Contents of the grammar atm)
First running version of retrieving sgGrammar

Only returning a dummy for now - but it's working.
Add Smyth grammar sections
Add further Smyth grammar sections
Fix route to get Smyth htmls
Add complete section index to sgGrammarRetriever
Add specs for a Range class
Start Range constructor factory
Add Range.includes()
Add Range.includesOtherRange
Add Range.hasOverlaps
Add some parens