Some regression issues fixes

This is what I was able to do in a day. Fixed 4 issues:

- #185
- #186
- #187 
- #190 

More to come, however we need to move forward. 

```
pksunkara@codecave [snowcrash] #2 «master» →  ./bin/snowcrash 
## GET /1

+ Response 200
+ Body

{ ... }
_version: 2.0
metadata:
name:
description:
resourceGroups:
- name:
  description:
  resources:
  - name:
    description:
    uriTemplate: "/1"
    model:
    parameters:
    actions:
    - name:
      description:
      method: "GET"
      parameters:
      examples:
      - name:
        description:
        requests:
        responses:
        - name: "200"
          description:
          headers:
          body:
          schema:

error: (2)  unexpected paragraph block, expected a group, resource or an action definition, e.g. '# Group <name>', '# <resource name> [<URI>]' or '# <HTTP method> <URI>' :34:8
warning: (5)  ignoring message-body list item, message-body list item is expected to be indented by 4 spaces or 1 tab :28:5
```