fix sonar_diagnostic cardinality (digitalocean#173)

generic prometheus metrics scraper (digitalocean#172)

support PG and MySQL table data aggregation

add whitelist for MySQL metrics

Makefile: GPG_PRIVATE_KEY -> GPG_PRIVATE_KEY_FILE

fix install/remove scriptlet ordering (digitalocean#165)

version bump

add package update jitter for nightly cron (digitalocean#163)

Add support for injecting log level option into the scraper (digitalo…

…cean#152)

add user after install for quick fix