Lint posts

- ;
- ===
- No need to initialized a var to `undefined`
- Drop explicit return during assignment, it added nothing
Lint synclets

- ;
- ===
- Whitespace
- Indentation
Lint lib

- ;
- ===
- Long lines
- Whitespace
- Indentation
Lint map

- ;
- ===
- Undefined `var`
- Long lines
- Whitespace
Merge branch 'lint-tumblr'

* lint-tumblr:
  Lint map
  Lint lib
  Lint synclets
  Lint posts