Bug Fixes and Minor Enhancments

Fixed null http handler issue for close.
Fixed uniqueid on copy.
Update TCP handling to save connection. Added debug to http handler.
Fixed hex handling of intensity. Added handling for \n, \t, \r and so forth in tcp,udp and mqtt.
Fixed HA group support. Added JSON check for new devices. Added Device level filtering. Added decimal percentage.

Home assistant service call for groups from HA bridge device bug question
Fixes #444 opened on Feb 5 by papa-legba

Add filtering for getting of devices in the hue api by IP enhancement
Fixes #526 opened 6 hours ago by bwssytems

Dim Values 0.0 to 1.0 enhancement question
Fixes #401 opened on Jan 25 by beandi

Avoid JSON-Parse error in on/dim/offURL by parsing before saving enhancement question
Fixes #326 opened on Dec 23, 2016 by luke-ff

Nest account linked- JsonSyntaxException: enhancement question
Fixes #266 opened on Nov 22, 2016 by smithski

Xiaomi Yeelight support - TCP requests to use \n \r enhancement question
Fixes #415 opened on Jan 28 by mihaifireball

newline enhancement question
Fixes #448 opened 29 days ago by mbreunich

Using Escape Character enhancement question
Fixes #495 opened 12 days ago by craiglt

how to use "${intensity.math(X/4)}" bug question
Fixes #124 opened on Jun 4, 2016 by painkillerde

Can't get bridge to talk to Netcat to send commands via mochad bug question
Fixes #458 opened 26 days ago by instructor1361

hass HA bridge idle problem enhancement question
Fixes #501 opened 11 days ago by erroldee

HA-Bridge 4.2.0 - NullPointer on DomoticzHome bug
Fixes #507 opened 9 days ago by kaaspad

Unique ID - Not Unique bug question
Fixes #513 opened 5 days ago by merlin051