Propagate scope sets to inner scope except inner vars
Store outer local variable count for LOOP for expanded scope
Treat only 1 command line argument for script file name
Use cond
Add proper-vars to lambda node
Raise runtime error when unknown op appeared
Rename `iso` to `equal`
Rename `no` to `not`
Add string functions
Fix tools to work
Add README for test
Add vm opcode encoder
Add `global-variable-table` function
Save multiple values before calling write/ss