MDL-45918 tool_monitor: Polish the code for rule manager and unit tests
MDL-45938 tool_monitor: Initial version of rule form.
MDL-45938 tool_monitor: Add a yui module to handle event selection dropdown
MDL-45938 tool_monitor: Add support for editing/creating a rule
MDL-46110 tool_monitor: Create renderable and renderer for manage rules page
MDL-46110 tool_monitor: Display a rule managment interface
MDL-46130 tool_monitor: Handle rule managment
MDL-46241 tool_monitor: Create a class that represents a subscription instance
MDL-46111 tool_monitor: Add a renderer for the subscription page
MDL-46111 tool_monitor: Add renderables for the subscription page
MDL-46111 tool_monitor: Update subscription manager class to support the subs renderable
MDL-46111 tool_monitor: Add a UI page to manage subscriptions
MDL-46510 tool_monitor: Add an observer to delete data when course is deleted
MDL-46510 tool_monitor: Add unit tests for the course deleted event observer
MDL-47152 tool_monitor: fixed typo
MDL-47152 core: edited get_formatted_help_string to accept string parameters
MDL-47152 tool_monitor: added help icon renderer
MDL-47152 tool_monitor: added help icon for subscriptions
MDL-47152 tool_monitor: added help icon for rules
MDL-47460 tool_monitor: add missing alt on manage icons