Adding ability to launch Nfc scanning UI on Android

Jira issue: WP-761
Merge pull request #466 from pmorau/nfc3

Adding ability to launch Nfc scanning UI on Android
Support for PAPE extension in the PZH Web Interface.

The PZH Web Interface now implements the OpenID Provider
Authentication Policy Extension (PAPE) and sets the maximum
authentication age to '0', requiring users to re-type their
password when logging into the PZH and preventing the
OpenID provider from caching authentication.

PAPE: http://openid.net/specs/openid-provider-authentication-policy-extension-1_0.html

Jira issue: WP-92
Merge pull request #467 from jplyle/WP-92-Pape-Extension

Support for PAPE extension in the PZH Web Interface.
Added app2app support for peer mode

Changed app2app to dynamic service and added state listeners. Now the
PZP will register the app2app service only if the PZH is disconnected.

Jira issue: WP-681
Merge pull request #468 from fabianatwork/WP-681-App2App-Peer-Mode

Added app2app support for peer mode
Refactoring of Arduino folders. First implementation of Serial driver
for Arduino

Jira issue: WP-754
Merge pull request #470 from glatorre/WP-754

Refactoring of Arduino folders. First implementation of Serial driver for Arduino [WP-754]

mlasak: "what about the multiple files with same contents"

glatorre: "the serial_driver.ino file is currently the same for both the boards because the behavior is also the same. However I will enhance the mega version (rising a new jira issue) adding the capability to read sensors/actuators information from the SD card."
PZP friendly name shown instead of the full URL

Jira Issue: WP-263
PZP friendlyname is enforced for communication with WRT

Re-introduced update from PZH to PZP on event, it includes friendlyname and connectedPzp/connectedPzh friendlyName. This is for display purpose.
FindService and App2App peerId, has id replaced when communicating with PZPWSS and Browser.
Solves issue with the contacts where it reads wrong session id information.

Jira Issue: WP-263
Fixed address from friendlyName to originalId

Jira Issue: WP-263
Update message and few issue fix up

Reintroduced update message from PZH to PZP about connected devices information including friendlyName.
PZP WebSocket server replaces every message message header with friendlyName.

Jira Issue: WP-263
PZP websocket and client side pzhid handling

Corrected Pzhid handling on the client side

Jira Issue: WP-263
PZP sending friendlyname and key to the PZH at time of reconnect

Jira Issue: WP-263
Device friendly name

Message sent to connected PZP and PZH

Jira Issue: WP-263
Friendly name mapping that works across PZs

Jira Issue: WP-263
Friendly name updates in PZH and Service discovery

Jira Issue: WP-263
Few path checks to avoid PZP crash

Jira Issue: WP-263
PZP set friendly name interface fixes

Jira Issue: WP-263