Add url_parser library

@brettweavnet can you look at this please, i am pretty sure its inline with what you were looking for. See corresponding cookbook that will call this library https://github.com/live-community/live_community_chef_repo/blob/add_heirloom_cookbook/cookbooks/intu_lc/definitions/lc_app_predeploy_setup.rb#L56-L66 

I wasn't sure if simple_deploy always includes the region in the bucket name, but heirloom doesnt like the region name there so it has to be removed.