Importing Noark 5 XML files in noark5-parser now works without duplicates in web GUI

[Ole Aamot]

noark5-parser is a free tool for parsing and importing Noark5 XML
files licensed under MIT license into the free Nikita Noark5 Core
project.

Importing XML in the free tool noark5-parser is now working without
any known bugs and displays the imported Noark 5 archive entries in
the web GUI.

To test it, checkout the Nikita Noark 5 Core server application from
git and run it:

$ git clone https://github.com/HiOA-ABI/nikita-noark5-core.git
$ cd nikita-noark5-core/
$ make

See https://lists.nuug.no/pipermail/nikita-noark/2017-June/000306.html
for details on how to launch the web GUI in a web browser.

The tool is capable of parsing these XML files:
<URL:https://raw.githubusercontent.com/KDRS-SA/noark5-validator/master/src/resources/test-uttrekk/uttrekk1/n5uttrekk/arkivstruktur.xml>
<URL:https://raw.githubusercontent.com/arkivverket/arkade5/master/src/Arkivverket.Arkade.Test/TestData/Noark5/ContentClassificationSystem/arkivstruktur.xml>

To test the import tool with those XML files, launch it in another
Unix-based Terminal:

$ git clone https://github.com/oleaamot/noark5-parser.git
$ cd noark5-parser/
$ ./runparser

See https://github.com/HiOA-ABI/nikita-noark5-core/ and
https://lists.nuug.no/mailman/listinfo/nikita-noark/ for more details
about the Nikita Noark5 Core project.

Happy hacking,
Ole Aamot