Refactoring to separate recording events from constructing model. 11 regressions.
Fixed silly bug with affixing tags to client objects. 5 regressions remaining.
4 regressions.
3 regressions.
Removed old observer; we don't need it any more.
Started fixing getters/setters; 2 regressions.
Fixed all regressions.
Added -t option to instrumenter to dump event trace.
Added utility build-model.js for constructing models from previously recorded traces.
Need extra nullness check.
Added --no-cb flag.