* Fix possible confusion/data corruption when deleting radio profile (closes#4734, ref: #4686);
* Add Delete Profile action to Radio Profiles menu (closes#4736) (but remove from from app prefs. panel);
* Add confirmation prompt before deleting profile;
* Open profile settings dialog when creating/copying a profile (closes#4735);
* Make sure current (global) firmware flavor is properly updated when changing fw type/options in profile;
* Append "-Copy" to name of copied profile;
* Factor out Firmware global vars/functions in favor of static members.
FirmwareInterface::getCapability() to know which options are enabled in
the preferences. The Heli tab and the GVars are displayed according to
these options.
By using separate download areas for each Companion version it is possible to change the format and content of the voice downloads between versions. For Companion2 some download alternatives have been removed and some have been added.
A consequence is that it is always possible to try to download voice files. Even for those boards that have no voice capability. I do not think that is a big problem. Anyone trying to download voice files for a unmodified 9x should not be surprised to get a "file not found" browser message.
