Merge pull request #2 from bryan-clickrain/master

Hashtag fix and Display URL
removing copyright
Merge branch 'master' of github.com:bryantAXS/TGL_Twitter
Update to use Twitter 1.1 API
Change tag format to {exp:tgl_twitter:user}

This gives us the opportunity to expand to lists later.
Rebrand from TGL_Twitter to Twitter
Add {relative_date} to output Twitter-style relative dates

According to Twitter Display Guidelines, dates should be displayed as
relative when they are less than 24 hours old ("2h" or "39m" or "19s"),
or as "21 Apr" if it's the same year, or "21 Apr 85" if it isn't in the
current year.
Add {iso_date} to output dates formatted for a <time> element
Add {permalink}, {reply_intent}, {retweet_intent}, and {favorite_intent} urls
Update documentation
Remove some unused code