Support using local filesystem as humix storage

[jeffffrey]

Currently humix-think depends on clouddb (i.e. cloudant on bluemix) as the storage - for nodered flow and humix module information. It would be nice to use local filesystem as storage as well . NodeRed already support local filesystem, so the only work left is to be able to save humix module information on local file system.

[michaelchien1972]

1. It will be nice if you add 3 more lines for debugging (humix\think\bluemix-settings.js):
   console.log("humix_setting.location:" + JSON.stringify(humix_setting.location)); console.log("humix_setting.storage:" + JSON.stringify(humix_setting.storage)); console.log("humix_setting.storageURL:" + JSON.stringify(humix_setting.storageURL));
   before the code if( humix_setting.location === 'bluemix' ){
2. This file also need to be modified in order to align the humix-think (humix\sense\config.js):

module.exports = {
thinkURL : 'http://127.0.0.1:3000/'
.
.
}

Thanks!