Updated LB docs for haproxy_marathon_bridge script
Re-compile JS with latest changes from master
Add TaskRateLimit deprecation to migration doc

- purge taskRateLimit from other example responses
Merge pull request #561 from mesosphere/docs

Add TaskRateLimit deprecation to migration doc
Merge pull request #562 from mesosphere/haproxy-docs

Updated LB docs for haproxy_marathon_bridge script
Filled out missing message types in event-bus.md

- Added appId to the AddHealthCheck event
- Fixes #564