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.
URL is now constructed after possible fallback value for Infoblox_View is being set
Infoblox_View is URLencoded to deal with e.g. spaces
Some cleanup, clearer log messages etc.