1. Rework magnetic tape drive implementation to use Promises; refactor and consolidate drive operation routines.
2. Implement remaining magnetic tape operations: MOW, MOR, MRD, MRR, MTS, MFS, MTC, MFC.
3. Implement better error status reporting in mag tape control MISC register.
4. Implement memory and Processor-state dump by clicking the Burroughs "meatball" logo.
5. Implement preliminary run-time statistics on Console.
6. Use Function.bind() to bind context in Processor and mag tape scripts.
1. Commit initial (incomplete) implementation of magnetic tape drives (TSU) and control: MLS, MRW, MDA, MIW, MIR, MPF, MPB, MPE, MIB, MIE.
2. Change B220SetCallback.js "setImmediate" mechanism to use DOM Promises instead of window.postMessage().
3. Minor styling and window positioning changes.
