Execute (Clean up test environment):
  call textobj#quote#init({'replace':1})
  map <silent> ; <Plug>ReplaceWithCurly
  map <silent> \ <Plug>ReplaceWithStraight

###########################################################
Given:
  "It's 'Dr.' Evil, thank you very much," he said. Then I said, "What do you
  know about it anyhow. You aren't very nice, are you?" Then he stormed off,
  and I haven't seen him since.

Do (Curl quotes in normal mode):
  ;

Expect:
  “It’s ‘Dr.’ Evil, thank you very much,” he said. Then I said, “What do you
  know about it anyhow. You aren’t very nice, are you?” Then he stormed off,
  and I haven’t seen him since.

###########################################################
Given:
  “It’s ‘Dr.’ Evil, thank you very much,” he said. Then I said, “What do you
  know about it anyhow. You aren’t very nice, are you?” Then he stormed off,
  and I haven’t seen him since.

Do (Straighten quotes in normal mode):
  \

Expect:
  "It's 'Dr.' Evil, thank you very much," he said. Then I said, "What do you
  know about it anyhow. You aren't very nice, are you?" Then he stormed off,
  and I haven't seen him since.


Given:
  "It's 'Dr.' Evil, thank you very much," he said. Then I said, "What do you
  know about it anyhow. You aren't very nice, are you?" Then he stormed off,
  and I haven't seen him since.

Do (Curl quotes in visual mode):
  vip;

Expect:
  “It’s ‘Dr.’ Evil, thank you very much,” he said. Then I said, “What do you
  know about it anyhow. You aren’t very nice, are you?” Then he stormed off,
  and I haven’t seen him since.


Given:
  “It’s ‘Dr.’ Evil, thank you very much,” he said. Then I said, “What do you
  know about it anyhow. You aren’t very nice, are you?” Then he stormed off,
  and I haven’t seen him since.

Do (Straighten quotes in visual mode):
  vip\

Expect:
  "It's 'Dr.' Evil, thank you very much," he said. Then I said, "What do you
  know about it anyhow. You aren't very nice, are you?" Then he stormed off,
  and I haven't seen him since.