Ubiquiti removed keytool (and java) from recent releases of Unifi OS. This moves from keytool to openssl's native pkcs12.
Tested on Unifi Dream Machine which runs Unifi OS and a built-in Unifi controller.
Also added backup of existing files prior to change in case anything goes wrong, and update system configuration with compatible ciphers.
* Support for MyDevil.net (#2076)
support mydevil
* Fix verification for namecheap domains not *owned* by the calling user (#2106)
* Peb (#2126)
* support pebble
* support async finalize order
* add Pebble