add "Save and Continue Editing" buttons to all table based management screens
use date_i18n for template dates
templates: filter and order episodes
direct contributor access in templates
fix network activate
Merge branch 'master' into release-1.10.7
update readme
auphonic: add a space
pass more data to web player

New values:
- show object
- license object
- list of downloads

Still available but deprecated: showTitle, showSubtitle, showSummary,
showPoster
fix web player compatibility
fix contributor template filter typo
add services and donations to export format
improve export format

- new xml namespace
- wpe:export as wrapper
- publisher version and export date as comments
- indentation
add shortcode: `[podlove-podcast-social-media-list]`
add shortcode: `[podlove-podcast-donations-list]`
fix episode.player context issue
Merge branch 'master' into release-1.10.7
update readme
Merge branch 'master' into release-1.10.7
add docblock for episode.player