add SPI support for JS
example add: pwmWriteModule_JS
Corrected error in smbus
Merge branch 'next' of git://github.com/manuIO/weio into manuIO-next

Conflicts:
	www/libs/weio/weioApi.js
Merge branch 'manuIO-next' into next
Merge branch 'next' of https://github.com/nodesign/weio into next