Added a set-downloadable action to rules.
Drush: added solr search to asset-list

drush mm-asset-list, including facets.
Allowed more simultaneous jobs per asset.

Currently no more than 1 job per asset is allowed to run at the same
time. This is an unneccesary restriction and is refactured. Also
documented this notorious query.
Added asset_type to asset.
Merge branch 'master' of github.com:mediamosa/mediamosa
Merge pull request #102 from arjenk/feature/drush-search-solr

Your pull request has been merged, thank you.
Merge pull request #103 from arjenk/feature/rules-add-downloadable

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Merge pull request #104 from arjenk/feature/more-jobs-per-asset

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Fix 'file_type' during install update instead of 'asset_type'.
Merge branch 'master' of github.com:mediamosa/mediamosa