Build 212

[tim arnot]

v4.0.0. (Build 212)

* Added Show Extended Centrelines to context menu
* Display Sim Database buttons now toggle, meaning you can now turn off all data overlays
* Fixed errors around some bgls on Navdata build (although new tags are not currently interpreted)
* Added Restart Log function (Options/General)
* Fixed opacity on flight plan line
* Fixed Aircraft profile dialog did not allow decimal values in some fields.
* Fixed read KMZ failed to unzip (now uses native Core unzipper)
* Approach Picker dialog button backgrounds fixed