v1.1.0 - Time to Prune

This release adds the ability to prune old post (and thumbnail) data to reclaim space where desired.
This can be configured as an environment variable as follows:

# The number of days to wait before a post should be pruned.
# Uses the post published_at time to determine lifetime.
# Setting this to false disables any auto-pruning.
# If active, pruning will auto-run daily.
# Defaults to false (No pruning) 
APP_PRUNE_POSTS_AFTER_DAYS=30