Bump up emberjs-build version

Testing with the latest version of emberjs-build
Cleanup escaping in SimpleBoundView
Refactor the `if` helper to not rely on `bind` anymore
Merge pull request #9995 from mmun/cleanup-escaping

Cleanup escaping in SimpleBoundView
Merge pull request #9997 from ebryn/bound-if-view

Refactor the `if` helper to not rely on `bind` anymore
Merge pull request #9983 from twokul/emberjs-build-upgrade

Bump up emberjs-build version
Cleanup escaping in BoundView
Cleanup escaping in LinkView
Remove _SimpleMetamorphView
Merge pull request #9998 from mmun/cleanup-escaping

Cleanup some more escaping
Use a precompiled empty template
Update README.md fix punctuation
Merge pull request #10000 from mmun/empty-template

Use a precompiled empty template
Simplify if helper and view
Merge pull request #10001 from alextsg/patch-2

Update README.md fix punctuation
Merge pull request #10002 from mmun/simplify-if-helper

Simplify if helper and view
Refactor the `partial` helper to not rely on `bind`
Merge pull request #10003 from mmun/bound-partial-view

Refactor the `partial` helper to not rely on `bind`
Merge pull request #9999 from mmun/remove-simple-metamorph-view

Remove _SimpleMetamorphView