:shipit: release 1.10.20
simplify \Podlove\PLUGIN_DIR declaration
improve HHVM compatibility by skipping gzipping

issue #503
solve merge conflicts
Merge branch 'master' of github.com:podlove/podlove-publisher
Merge branch 'master' into release-1-10-21
undo damage done to ADN module by merging
update readme
fix namespace capitalization

issue #503
web player api: remove unused directAccess param
use `sanitize_title` to generate episode slugs
:shipit: release 1.10.21