Fix a typo in the function retrieving the retweet_of_me timeline.

* twittering-mode.el: Fix a typo that disables twittering-mode.el
from retrieving the ":retweets_of_me" timeline.
(twittering-call-api-with-account-in-api1.1): fix a typo.
Fix the function of rendering a replied tweet.

* twittering-mode.el: Fix the function of rendering a replied
tweet.
(twittering-retrieve-single-tweet-sentinel): fix the condition
for deciding whether it should re-render a tweet partially or
not.