Merge pull request #2 from nZEDb/dev

Dev
cleanup display, changed output to backfill safe
fixed error where group not available
Merge pull request #662 from nZEDb/dev

Dev
added ignore to insert statement
Merge branch 'dev' of github.com:nZEDb/nZEDb into dev
reverted to previous method for threads of incomple pp cats
Merge pull request #663 from nZEDb/dev

reverted to previous method for threads of incomple pp cats
Merge branch 'dev' of github.com:nZEDb/nZEDb into dev
Merge pull request #3 from nZEDb/dev

Dev
filter out bad files
Prune damaged releases
minro changes
fixed bug when user maxsize set to 0
Merge pull request #665 from ugokanain/dev

Dev
Merge pull request #5 from nZEDb/dev

update
check for viable releases

Indicate whether a release failed to get segments from the server
type issue
undefined failed
upgrading to python 3