add ability to extend parser settings

Hi, i know nothing about sublime text plugin architecture, but i'll be happy to have an ability to use [codo](https://github.com/coffeedoc/codo) with this plugin. There are minimal (but may be not valid) changes to make it possible.
##### My use case for codo: 
```coffee
  #<enter>
  render: ->
    <div>LDAP VIEW</div>
  
  # becomes
 
  #
  # [render description]
  # @return {[type]} [description]
  #
  render: ->
    <div>LDAP VIEW</div> 
```
##### Keymap:
```json
    // open a docblock with enter
    {
        "keys": [
            "enter"
        ], 
        "command": "jsdocs",
        "args": {
            "prefix": "#",
            "options": {
                "commentCloser": "#"
            }
        },
        "context": [
            { 
                "key": "setting.auto_indent",
                "operator": "equal",
                "operand": true,
                "match_all": true 
            },
            { 
                "key": "selection_empty",
                "operator": "equal",          
                "operand": true,                         
                "match_all": true 
            },
            { 
                "key": "auto_complete_visible", 
                "operator": "equal",          
                "operand": false,                        
                "match_all": true 
            },
            { 
                "key": "selector", 
                "operator": "equal", 
                "operand": "source.coffee" 
            },
            { 
                "key": "preceding_text",        
                "operator": "regex_contains", 
                "operand": "^\\s*(#)\\s*$", 
                "match_all": true 
            }
        ]
    }
```
Thanks, anyway.