Add support for tracking multiple GA accounts
Fix issue where not all arguments would be pushed to GA
Track initial page loads for media with GA
Allow fragment to track to be specified
Track page changes on collections with specified GA account
Cleanup code
Add support for passing callback to navigate
Use navigate callback to update analytics information
Use navigate callback to update analytics information
Merge pull request #329 from Connexions/ga-support-for-collections

GA support for collections