use twibill's webapi
added hi tweetvim_reply
improved syntax match
echo error if no tweet
improved buffer#repalce to not move icon
improved stream cache
improved feed keys
changed display error time
added auto reconnect to userstream
added BufDelete to close streams
added g:tweetvim_reconnect_seconds
fixed buf leave event to restore udpatetime
applied filter to userstream
improved readme
to fix remain tweet at last line
fix initialization of :TweetVimUserStream

:TweetVimUserStream
による初期化時にフィルターが適用されていないバグを修正しました．
Merge branch 'rhysd-fix/init_of_userstream' into dev
changed default of tweetvim_reconnect_seconds
show direct message to tweetvim buffer
Merge branch 'ompugao-show_direct_message' into dev