Smart-indent not outdenting correctly with Python #41

Copied from the original comment on LightTable/LightTable#1627:

I'm running into a roadblock using Light Table with python because the smart-indent feature isn't out-denting when it should after functions or classes.

Ex. before smart-indent:

class Dog:
    kind = 'canine'
    def __init__(self, name):
        self.name = name

class Cat:
    kind = 'feline'
    def __init__(self, name):
        self.name = name

After smart-indent:

class Dog:
  kind = 'canine'
  def __init__(self, name):
    self.name = name

    class Cat:
      kind = 'feline'
      def __init__(self, name):
        self.name = name

Not only did it reduce the tabs down to 2 spaces, it also didn't pickup on when to outdent causing the sibling classes to become nested.

This is a major blocker for polyglot Light Table users who use python.

LightTable 0.6.7