Add handling of linter messages when no linters for a file type exist (resets the linter indicator).
Switch to using a undetermined handler for the undetermined state instead of parsing messages.
Rename and move not linting event to linterManager.
Use linterManager instead of this keyword for event trigger.
Remove brackets from clearFatalError and remove clearFatalError call from linterManager.
Merge pull request #69 from MiguelCastillo/mark/issue-66

Add handling of linter messages when no linters for a file type exist (r...