MOTM-664: Some results show ghost articles

Make article view published null if article is not published.
This will fix the detection in article indexer and remove articles
which were published and unpublished after.
Fix solr search from/to helper.
Merge pull request #366 from thnkloud9/zplus

MOTM-734: Change weather requests from 1h to 3h prognosis in general setup
Merge pull request #365 from petrjasek/zp-664-ghosts

MOTM-664: Some results show ghost articles
MOTM-747: fix invalid date as parameter
MOTM-747: ignore invalid date as parameter
Merge pull request #369 from ahilles107/zplus

MOTM-747: fix invalid date as parameter
change way how we update indexed article, don't update whole article object
Merge pull request #375 from ahilles107/zplus

change way how we update indexed article, don't update whole article obj...
update index solr without cache
add missing plugin for archive
Update function.build_solr_fq.php
Update function.build_solr_fq.php
add missing plugins
use build_solr_fq from lab
Fixes the generated URL
Merge pull request #392 from terwey/patch-1

Fixes the generated URL
MOTM-730: Added Infosperber ingest
MOTM-730: Updated code to PSR standards
MOTM-730: Compliance with PSR standards: lowercased 'as' in foreach statements