improvements on folders, working TSM and tape
Merge branch 'master' of https://github.com/terman/6.004x
working tmsim parser and working TSM runner ('l' 'r' and '-')
regex changes to tmsim to better account for multiline comments, cleaned up regex
tmsim checking result and result one tape comparison working, more syntax fixes
added hover buttons to filesystem, bug fixes to tmsim
regex string modifications, cleaned up console.logs)
Merge branch 'master' of https://github.com/terman/6.004x into tmsim