Ignore some files and directories for Bower installs

When installing backbone.marionette through Bower, there are a lot of additional files added. This can be ignored.

I used something similar to this: https://github.com/twitter/flight/commit/e5fc35d9d8d6ae0431be4fd6052ce151bb2c0c66
addition of core directory has broken volo add command url path. This fixes the path.
Correcting property to be passed for updated Backbone fetch() method.

See http://backbonejs.org/#upgrading
If you want to smartly update the contents of a Collection, adding new models, removing missing ones, and merging those already present, you now call set (previously named "update"), a similar operation to calling set on a Model. This is now the default when you call fetch on a collection. To get the old behavior, pass {reset: true}
Fix typos in changelog
Update marionette.layout.md

mention some key benefits in intro, fix passive voice - hopefully thats clearer?
Update marionette.region.md

hopefully clarify, and mention regions within layouts
Update upgradeGuide.md

the correct option for `collection.fetch()` is `{reset: true}`
Update marionette.view.md

Backbone.Events.listenTo no longer accepts a 4th 'context' parameter. Updated documentation to reflect this, including an example of the workaround for those cases where it is desired.
Fix each example that erroneously used <%=, rather than <%
Merge pull request #641 from radar/patch-1

Fix each example that erroneously used <%=, rather than <%
Merge pull request #634 from depoulo/patch-1

Update upgradeGuide.md
Merge pull request #632 from ErichBSchulz/patch-2

Update marionette.layout.md
Merge pull request #618 from hallmark/patch-4

Fix several typos in changelog
Region config 'type' should be 'regionType'
Fix typo on marionette.templatecache.md
Fix another typo on marionette.templatecache.md
Improve comment on bind-context example.

Used comment suggested by @derickbailey.
fixed anchor links for events in CollectionView documentation
updated component.json and added bower support
fixed url for volo