Allow pollers to update a check based on form submission
Move PAttern Matcher logic to a plugin

* Changes the plugin init signature
* Monitor and dashboard emit new events
* Plugins can now add details to checks, abilities to pollers, and store additional details about pings
Merge pull request #158 from fzaninotto/new_pollers

[WIP] Refactor pollers to allow better extensibility
List modifications added by #158
Fix typo in patternMatcher plugin path
Fixed typos