TTY ignores click events unless it was already focused.
Merge branch 'master' of github-mattpf:6004x/6.004x
Merge branch 'master' of github-mattpf:6004x/6.004x
More backup/autosave stuff. The server is busted, though.
Added build instructions to README.md.
Fixed TTY tests to allow for focus requirement.
changed ~asv and ~del prefixes to postfixes
~asv and ~bak
autosave passed in as "autosave" file property
Merge branch 'master' of https://github.com/6004x/6.004x into jsim