constructor file example

refactored the example constructor to file-like format
changed observer relation names

PublishesTo, etc
Adding lwm2m
Instance Constructor sync
lwm2m test object, clean up observer binding
CoAP server using PUT to update, fake BLE handler

CoAP server now uses PUT to update instead of (wrongly) using POST
add subprocess call
fix hack subprocess call
Cleanup

Clean up handler interface description and LED demo template
Merge pull request #12 from mjkoster/master

Update with LWM2M and BLE proxy