separate terminal and shell
add runtime.exit() api, improve terminal and shell
runtime.exit() return paramater added, other improvements
don't create isolate on idle thread
add thread refcount, destroy threads with refcount 0
add thread termination reason debug message
terminal clear application
shell and vfs improvements
add date program
shell and terminal improvements
add cat and echo programs
shell stdin support
add more user space tools
delete isolate on it's thread, remove v8 lockers
thread setup/teardown cleanup
update transport call stack exceeded error message
add ls program
Version 0.1.2 and changelog
Merge pull request #21 from runtimejs/new-terminal

New terminal & shell