add http:// to beginning of lilurl short urls
Merge pull request #14 from nibalizer/add_http

add http:// to beginning of lilurl short urls
fix string encoding issue to work with ruby1.9
Merge pull request #15 from jasonaowen/master

fix string encoding issue to work with ruby1.9
Check for URL already existing in db.
Add collision resolution.

In the rare case that SHA1 generates a duplicate hash for
different URLs, this must be handled.
Add error checking for nonexistent postfixes.
Fix some TODOs.
clean up control flow expressions
linkify generated short url
refactor helper methods out
Parse urls with the URI class.
Merge branch 'master' of github.com:jasonaowen/lilurl into jasonaowen-master

Conflicts:
	translate.rb
Fix "unable to close due to unfinalized statements" error.
Catch invalid URI exception.
Check if params[:postfix] is empty or nil.
Add ability to return JSON to a POST request.