fileSystem and folder improvements, renameFile, TMSIM GUI beginnings
trying out jsim for speed testing
tmsim improvement
Tests for each instruction and some bug fixes to those instructions.
Complain better in SyntaxError constructor.
More tests and changes to accomodate those tests/fix bugs.
More work on tests; added coverage.
Added test for MemoryVerifier.
Added tests for TTY view.
Memory loading should round number of words up, not down.
Remove lots of debug logging.
server overhaul, authentication in server, requires https certs, library Handler is separate from server now"
Merge branch 'tmsim' of https://github.com/terman/6.004x
Performance improvement.

- Memory undo state now uses a list rather than a dictionary.
  Dictionaries are apparently pathologically slow... sometimes.
Implemented all the numbers in the schematic view.
Removed some dead code.
Merge branch 'bsim'
strip @mit.edu from username
Merge branch 'master' of github-mattpf:terman/6.004x
Merge branch 'master' into jsim