Can now set start and end times for the loop.

A "toolbox" is added to allow the user to enter a start and
    a stop time.
The script accepts (roughly) a '[HH:]MM:SS' format.
The text inputs should turn red on invalid times and green
    when the times are valid.
add minifier/urlescaper script
Create gh-pages branch via GitHub
Add the bookmarklet to index.html
Fix the bookmarklet link
Update index.html