Small perf and debuggability tweaks
Added caching to lazy injection validation
Added 'onLookup' factory hook for type injection validation
Underscored 'onLookup' and 'lazyInjections' hooks
Convert to single-quotes
Remove ember-template-compiler.js from S3 deployment.

This will come back in a future refactor, but for now we are no longer
bundling ember-template-compiler (from ember-handlebars-compiler
package).
Merge pull request #9847 from knownasilya/handlebars-main-quotes

[cleanup] ember-handlebars main.js Convert to single-quotes
Merge pull request #9850 from rwjblue/fix-s3-deploy

Remove ember-template-compiler.js from S3 deployment.
Fixes #9852 - inconsistent return value in OrderedSet
Remove nested defeatureify stripped statements for inline-if.
Merge pull request #9760 from slindberg/injected-properties-part-ii

Address concerns with injected properties feature
[FEATURE] ember-metal-injected-properties: enable
Merge pull request #9858 from rwjblue/remove-nested-stripping

Remove nested defeatureify stripped statements for inline-if.
Merge pull request #9859 from rwjblue/injected-properties

[FEATURE] ember-metal-injected-properties: enable
Merge pull request #9853 from aexmachina/ordered-set-returns-undefined

[bugfix beta] Fixes #9852 - Inconsistent return value in OrderedSet