Merge pull request #112 from ianmstew/activity

Augment trigger event metadata
[agent] fix issue where breakpoints went to the wrong line

The sourceURL flag was being set lower down in the agent.js dist file
This mismatch was causing the sources pane to mis-align the lines where
the breakpoints were being set.
[agent] refactor serializeEvents
Merge pull request #124 from jasonLaster/refactor-events

[agent] refactor serializeEvents
Added actionId and eventId
Refactored Node to follow Backbone convention for nested collections.
Build event tree
Cleaned up and refactored activities collection name
Starter event tree view and model