Remove else from outdent triggers

[vitallium]

Closes #39

Remove else from outdent triggers to indent the else keyword properly.

The else outdent is used for use cases with begin..rescue..else..end. Consider the following code block:

def test
  begin
    a
  rescue
    puts "Something went wrong!"
else
|#<= cursor position
end

before.mp4

Currently the else keyword is indented incorrectly but removing the else keyword from the indents triggers turns the same block into this:

def test
  begin
    a
  rescue
    puts "Something went wrong!"
  else
  |#<= cursor position
end

after.mp4