Update marionette.compositeview.md
Fixed minor error in CollectionView documentation
Update two broken links in the documentation index

Fix broken links due to name change of `Layout` to `LayoutView`.
Merge pull request #1701 from slashdotdash/patch-1

Update two broken links in the LayoutView documentation
Merge pull request #1700 from pfeiffer/master

Fixed minor error in CollectionView documentation
Fix incorrect heading in changelog
Add missing 's' on index links
Merge pull request #1711 from jfairbank/functions-docs

Add missing 's' on index links
Merge pull request #1699 from Pleochism/patch-1

Update marionette.compositeview.md
Clarify templateHelpers docs for non-helper methods.
Merge pull request #1717 from cmaher/template-helpers-docs

Clarify templateHelpers docs for non-helper methods.
extend Region instead of messing with prototype chain
Merge pull request #1692 from testbrian/master

example of effects on single region
add extend in 142 ,148,164line
Merge pull request #1740 from gaogao1030/patch-1

add extend in 142 ,148,164line
Fix example

`this.options` is not automatically assigned when initializing a Backbone.Model with options.
Merge pull request #1761 from jo/patch-1

Fix `Functions` example on `Marionette.getOption`
Fix incorrect collectionView docs
Merge pull request #1766 from marionettejs/sjs/fix-broken-collection-docs

Fix incorrect collectionView docs
Fix invalid collectionView doc