podboy: update to 1.5.0

podboy: update to 1.5.0

Changes since 1.3.4
* New feature: played episodes that are older than a specified amount of days (defined in Settings) can be auto-deleted on every startup.
* New feature: episodes can now be tagged as "(un)deletable" in page "Episodes". All episodes with status "undeletable" will be ignored when auto-deletion of old episodes will be done on startup.
* New feature: podcasts can be renamed.
* New feature: downloads can be canceled.
* Big code cleanup and code refactoring.

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>