[Style] Enforce use of Rocket syntax in hashes

[ashmaroli]

I would recommend the use of older rocket syntax in hashes because:

• it mirrors the output from Ruby

  gamma = { foo: 'bar' }
  delta = { :foo => 'bar' }
  
  puts gamma  # => {:foo=>"bar"}
  puts delta  # => {:foo=>"bar"}

• it allows aligning keys for improving readability

  a = {
  :name    => 'John Doe',
  :age     => 35,
  :address => '122B, Baker Street'
  }
  
  b = {
  name: 'John Doe',  # name   : 'John Doe' would raise a syntax error
  age: 35,
  address: '122B, Baker Street'
  }

• Does not resemble JSON:

  
  payload = {
  "name": "John Doe",
  "age": "35",
  "address": "122B, Baker Street"
  }
  
  puts payload # => {:name=>"John Doe", :age=>"35", :address=>"122B, Baker Street"}

[gettalong]

My 2c:

• I actually prefer the new syntax.
• Aligning is still possible using whitespace.
• Why would anyone think they are writing in JavascriptON if they are in a Ruby file?

These aside once kramdown 2.0 is released, this repo becomes unmaintained and a new maintainer can modify it to their heart's content :smile:

[ashmaroli]

I don't mind taking over when you step down. It is a very small project.

[gettalong]

Cool, thank you! I have given you admin access to the repo but please don't modify the master branch until kramdown 2.0 is released.

[ashmaroli]

Awesome! And no, I won't abuse my privilege.

[ashmaroli]

No longer pursuing this fad