Add add-label and remove-label option to update_issues
Update iteration template.
Add topological sort
Create iteration generator
Require octokit before monkey patches
Fix --before default value
Insert newline to surely terminate markdown Lists
Comments list to be placed under the parent issues
Rename @issue to @resource for a preparation for big change
Update template
Separate user and comment formatter from issue formatter
Adjust list formatter
Fix typo
Change option banner
Enable HTTP cache for speedup
Use gsub to replace all #n style strings
Meld link command int filter command
Update example
Print cache Hit/Miss info only when --debug option is on
Fix typo