[#fix] fix multiple instances

add a random number ID to each instance so that multiple instances on the same page don't share an id even if they share a service. Also make sure that ID is passed as the prependTo option to Alerter

Branch: fix-multiple-instances
[#fix] tag bug fix

tagged as 1.1.1

Branch: fix-multiple-instances
Merge pull request #8 from blocks/fix-multiple-instances

fix multiple instances