Remove automatic py35+ syntax detection

Resolve commas in one stage for multi-line string nodes

Don't unhug things containing only a triple-quoted-string

Don't introduce trailing whitespace on blank lines when unhugging

Simplify functions now that we are handling unhug of (

Change back to single pass now that it is top-down

Handle parenthesized things and more proper reindenting

Better handle escaped newlines

Fix cases for more than one argument

Adjust trailing brace indentation to match opening brace

Also unhug stararg calls / functions

Unhug leading and trailing braces

Also add trailing commas for FunctionDef

Properly detect parens when the function is parenthesized

Add support for adding trailing commas to literals