Merge pull request #754 from abhinavc/master

1/i4h part 3
Merge pull request #755 from abhinavc/master

clean_logs -> cleanup_logs. Name as used in crontab
Merge pull request #756 from abhinavc/master

1/i4h last set
Merge pull request #757 from abhinavc/master

1/i5h part 1
Merge pull request #758 from abhinavc/master

1/i5h part 2
Merge pull request #759 from abhinavc/master

1/j9h part 1
Merge pull request #760 from abhinavc/master

1/j9h part 2
Merge pull request #761 from abhinavc/master

1/jhh part 1
Merge pull request #762 from abhinavc/master

1/jhh part 2
Merge pull request #763 from abhinavc/master

Codices
Merge pull request #764 from abhinavc/master

1/k3h part 1
Merge pull request #765 from abhinavc/master

1/k3h part 2
Merge pull request #766 from abhinavc/master

1/k3h part 3
Merge pull request #767 from abhinavc/master

4/5nh part 1
Merge pull request #768 from abhinavc/master

4/1nh part 1
Merge pull request #769 from abhinavc/master

1/kzg part 1
tried adding a codex
Merge remote-tracking branch 'upstream/master'
Merge pull request #770 from adamarla/master

First codex
Merge pull request #771 from abhinavc/master

New commandline method - list_missing_pngs added