Merge pull request #76 from dak1/master

Use Backbone version 1.1
add getter/setter for separator for older IE versions
Update CHANGELOG.md
Update CHANGELOG.md
add safety check for toJSON
Fix for issue #80
Add a Bitdeli badge to README
Merge pull request #81 from bitdeli-chef/master

Add a Bitdeli Badge to README
Updated for v0.5.4
Updated for v0.5.4
update with new size...
Update README.md
Adds support for remote key - Issue #78
Adds support for selective serialization - Issue #78
Transient is a reserved keyword as of ECMA 2

Change it to be isTransient
Improve _bubbleEvent performance

In many cases eventObject is a Backbone Model
This means we can do a faster lookup using Collection.get instead of
Collection.find
Merge pull request #85 from meraki/fix_reserved_transient_keyword

Transient is a reserved keyword as of ECMA 2
Merge pull request #86 from meraki/improve_bubble_event_performance

Improve _bubbleEvent performance
perf improvements for issue #88
no need to call toJSON if not serializing