Examples of specifying the IP version

Code examples that specify the IP version when connection, include:

frame:v4
frame:v6
frame:v4v6
frame:v6v4
frame:v6:3026    ## 3026 is the port
[1:1::1111]:3026 ## 3026 is the port

The IP version in the following example is redundant but allowed:

[1:1::1111]:v6:3026 ## 3026 is the port
[1:1::1111]:v4v6:3026 ## 3026 is the port