BUG: Further approximate tweet JS

note: this does match a#hashtagwithinaword
ENH: twitter.js: match and do not display scheme://, extend to 35 chars
Merge pull request #186 from westurner/fix_tweet_regex2

BUG: Further approximate tweet JS
Merge pull request #187 from westurner/match_tweet_link_scheme_35char

ENH: twitter.js: match and do not display scheme://, extend to 35 chars