polling-jsonp: fix ie6 JSONP on SSL
Release 0.4.2
[fix] Don't assume that component is globally installed
[minor] implement `npm test` as test command
[fix] Removed pointless variable
[codestyle] Added missing semicolon and removed pointless semicolons
[codestyle] Removed pointless semicolon and added missing semicolons.
[codestyle] 'undefined' --> undef = 'undefined' variable reference
[minor] Remove unused package