Fixes issue #258
Fix for issue #257

Incremental find should disable autoactivation of
content assist.
Checkpoint. Most of the standard content assist tests passing
All single file content assist tests passing
Partway through summary building tests
all summary building tests passing
all tests passing ready for merge
fix TypeError when there are __defineGetter__ or other synthetic references in code
Handle the __proto__ property better.
Some reasonable formatting of hovers.
Cut out too much from the summaries, but at least now localStorage doesn't overflow.  Tests are failing.
return to background indexing
Final fixes for crossfile indexing with new type structure

still too large
Better formatting of type hovers.

Indenting object literals.
Summary size much smaller now.

Don't try to merge type from summary into an existing type.  This bloats things too much.
Very simple inferencing for callback functions parameters
Fix NPE for some kinds of args.
All tests passing again
Added new tests for summary type compression
Fix type in types so that array hovers will look nice.
Fix type error for empty union types.