Allow multiple tags while filtering by tag

[dmitrisweb]

info.json has

{
  "title": "Module Name",
  "tag": [
    "myproject",
    "module",
    "universal"
  ]
}

This works:

<div class="source_col">
  <div class="source_catalog" data-nav="/items" data-tag="module">
    <h2 class="source_catalog_title">All Modules</h2>
  </div>
</div>

But filtering by multiple tags does not work (comma separated, nor space separated)

<div class="source_col">
  <div class="source_catalog" data-nav="/items" data-tag="module,universal">
    <h2 class="source_catalog_title">Universal Modules</h2>
  </div>
</div>

[robhrt7]

Useful feature request, would be great is somebody of Backbase guys could help on getting this done in core.

[cheshirsky]

Implemented in navigation fixes branch.

[robhrt7]

@dmitrisweb, what is the expected filter behaviour? Show specs that have both tags in the list, or 2 subsets? The current implementation by @cheshirsky checks specs that has both tags, which seems a bit wrong.

[dmitrisweb]

Spec should contain both tags to be displayed - that is correct
Like show only "Universal Modules" or show only "MyProject Modules"
filtering by 2 and more tags would be very helpful

[robhrt7]

Ok, @cheshirsky almost finished the PR, I've done the review already. Feature will be included in 0.5.6 during this or next week.