Updated Analysis package.
Updates to use service-provided line/col.
Update analysis package.
Fix up message severities.
Update analysis package.

Plus some new file references from the following changesets...
Fix possible bug with disposed events in VS.
Create a tracker for open files.

This will allows us to subscribe to analysis data for open files.
Subscribe to errors for open files.

This will force errors to be re-sent, even if we've had them. This will
be required by the Squiggle tagger, which needs the data after the
normal analysis has already been run.
Add a Squiggle Tagger for errors.
Support completion of parens and indexes too.