server (blog): implemented tag/category filtering: - the tag=[quoted tag] query is used to use the filtering - MAM data use request.mam_extra instead of request.extra_dict to avoid using it with item_ids - getDefaultQueryData function is used to keep query data (link MAM category filtering) between links - filtering is help when displaying a blog post, this way it's easy to navigate between thematic posts - filtering can be removed by clicking on user avatar/nick (with default theme)

The file otr.min.js includes:
    - minified versions of the following otr.js dependencies:
      otr/dep/bigint.js otr/dep/crypto.js otr/dep/eventemitter.js
      The following minification tool has been used: yui compressor
    - minified version of otr.js taken from the project homepage

All original files can be retrieved from otr.js repository:
    https://github.com/arlolra/otr/tree/master/build

See the README file of Libervia, or inside otr.min.js itself for licence information.