Adds function to check most inputs for config file, to ensure they meet requirements.
For example, that tags don't have a "#" and the username doesn't have a "@"
This commit adds the ability to further suppress output for accounts
with no deleted toots using the `-qq` flag. It alsoadds the option
to completely suppress logging (excluding exceptions) by using the
`-qqq` flag
Paco Esteban
Hugh Rundle
Mohamad Safadieh