Update creating-a-new-model.md

Defined property `newTitle` on `TodosController` with default value of empty string. Without this, line `if (!title.trim()) { return; }` will throw _Uncaught TypeError: Cannot call method 'trim' of undefined_ when trying to submit an empty string.
Update the-rest-adapter.md

Plurals dealing with an API need to be underscored.
Add cookbook section
update checkbox binding logic error

if isAdministrator is false, then checkbox is disabled, not the other way.
added sorting to array controller guide
In routing, add description of initial routes.
Merge remote-tracking branch 'upstream/master'
added a deeply nested route example
Update redirection.md

transitionTo is deprecated, updating to transitionToRoute for Ember 1.0.0-rc.6.1
Merge pull request #612 from jmsalcido/patch-1

Update redirection.md
Fixing issue #613

Problem to open "Passing Properties to a Component" Documentation Page.
Correcting the spell mistake
Merge pull request #614 from VinayBHiraskar/patch-1

Fixing issue #613
When using imports, make sure to import console
Fix typo for routing-redirection
Merge pull request #616 from lord-spam/patch-1

Fix typo for routing/redirection
Merge pull request #611 from cavneb/master

Added sorting to array controller guide and a deeply nested route example
Merge pull request #615 from aaronshaf/patch-1

When using imports, make sure to import console
Correct LOG_BINDINGS flag in Debug guide
Merge pull request #617 from trek/fix-log-bindings-in-debug-guide

Correct LOG_BINDINGS flag in Debug guide
Update creating-a-new-model.md

I made two small text corrections.