add default option for weight and height
update README
remove default option for weight and height, since  have some defaults
Merge pull request #5 from aredo/master

add default option for weight and height
Update default values on README.
Add timeout to deferred render and ensure no double render.
Check renderable before creating property.
Reset page after every render and fix typo.
Resume to avoid memory buffering.
0.4.0
Disable timeout per default.
ensure loop is drained
add read error handler
Use timeout instead of interval.
short circuit when no timeout
0.4.1
Exit phantom processes automaticatlly if parent process dies.
Remove named pipe before exiting when parent process exists.
Update example.
0.4.2