Cockpit applications: honor URLs inside manifest

[gsanchietti]

The About page inside Cockpit applications contains hard-coded URL pointing to the application repository and to the global bug tracker.

Applications can also define such URLs inside their manifest file like /usr/share/cockpit/nethserver/applications/<app>.json, using homepage and bugs.url parameters.

Enhance the About page implementation by reading the manifest and exposing URLs contained under the homepage and bugs.url parameters.

Such improvement will support change the URL's for white-label resellers.

But please note that any change to the manifest file will be lost upon pacakge update.

Packages that need to be updated are:

• nethserver-register
• nethserver-flashstart

[nethbot]

in 7.9.2009/nethesis-testing:

• nethserver-register-4.9.1-1.1.g44e8232.ns7.noarch.rpm x86_64

[nethbot]

in 7.9.2009/nethesis-testing:

• nethserver-flashstart-2.7.0-1.1.g57aad17.ns7.noarch.rpm x86_64

[gsanchietti]

Test case 1

• Change homeurl and bugs.url inside /usr/share/cockpit/nethserver/applications/nethserver-flastart.json
• Restart Cockpit: systemctl restart cockpit
• Verify the URLs are updates inside the About page

Test case 2

• Install the updated nethserver-register on a clean machine
• Verify the user can register the machine at my.nethesis.it

[mamengoni]

tested and verified

[nethbot]

in 7.9.2009/nethesis-updates:

• nethserver-register-4.9.2-1.ns7.noarch.rpm x86_64

[nethbot]

in 7.9.2009/nethesis-updates:

• nethserver-flashstart-2.7.1-1.ns7.noarch.rpm x86_64