Fix unknown function vl:raise-login

[tribut]

Not sure if this is the correct way to fix it, but while trying to query Stadtbibliothek Chemnitz using xidel, I got an error:

$ xidel -e '$username:="XXX",
          $password:="XXX",
          $server:="https://opac2.stadtbibliothek-chemnitz.de/webOPACClient/",
          $startparams:="?Login=opsb"
    ' --template-action connect,update-all  \
      --module mockvidelibri.xqm --xmlns videlibri=https://www.videlibri.de --dot-notation=on \
      --template-file data/libraries/templates/sisis/template
[...]
Error:
err:XPST0017: unknown function: vl:raise-login #0

Did you mean: 
  In module math:   (namespace url: "http://www.w3.org/2005/xpath-functions/math")
    log #1:  (double?) as double?

in line 1 column 5
 vl:raise-login() 
    ^^^^^^^^^^^^^  error occurs around here

Multipage action trace:
update-all
login <call>
(pattern of action:login page:{$request})

The problem appears to be that vl:raise-login is called without argument from data/libraries/templates/sisis/template.

[benibela]

It took a while to merge, because I was trying to figure out how to deal with the "Verfified" label

If I merge it on Github, it does not synchronize with the sourceforge/gitlab mirrors.

There is no verified label in the associated patch: https://github.com/benibela/videlibri/pull/7.patch (and a hgtags file. that comes from the mirroring, but it should not be in the patch)

Now I have merged it on Github, but the "Verified" label got lost anyways