Look into highlighting lines in editor corresponding to phan errors

[TysonAndre]

https://groups.google.com/forum/#!topic/ace-discuss/joAFrXwWLX8

This should use different classes, and clear errors when the file gets changed

var Range = ace.require('ace/range').Range;
editor.session.addMarker(new Range(8, 0, 8, 1), "ace_highlight-marker", "fullLine");