[minor] defer creation of child pagelets
Merge branch 'master' into recursive
[fix] dont call removeChild multiple times
Merge pull request #5 from bigpipe/recursive

Recursive
[minor] Link to pipe.template to get the template
[minor] Allow searching for pagelets placeholders within a given root

This is needed for nested pagelets
[fix] Don't assume that create receives an object.
[fix] Minor emit events.
[fix] Properly wait for the client side template to be registered.
[fix] Correctly check and merge objects
[test] Added tests for .index and .copy
[test] Added more indepth tests for copy