Support more scenarios

[weshouman]

Support the following

• Scenarios where multi strings are templated.
• Use of array of elements alongside with the default values.
• logout method.
• Many more methods.

[agaffney]

The main feedback that I have on this is that there's no way to disable the application of a bunch of this new configuration. For example, for the mail settings, there's no options other than disabling mail or actually configuring everything. I don't really have a good suggestion for how to implement the third option of leaving it alone, though.

[weshouman]

Keeping some settings untouched shall be done with a check for each setting whether it's configured for the task or not. This could be implemented by eliminating the use of multi-strings for the compound settings and (of course we know each option whether optional or not, ie: have a clear API)

Note: some options could be tricky, ie: password and __CiPhErTeXt, one and only of them is required for the user creation.

[rlenferink]

Are you planning on completing the task/vpnserver stuff? Otherwise it might be better to remove the empty files.

FYI: I don’t need it as I have my vpn configured on pfSense.

[rlenferink]

The main feedback that I have on this is that there's no way to disable the application of a bunch of this new configuration. For example, for the mail settings, there's no options other than disabling mail or actually configuring everything. I don't really have a good suggestion for how to implement the third option of leaving it alone, though.

The suggestion I have is to put sensible defaults in place. The default should be the same as after a fresh installation.