Backlog Sprinter

This provides features for sprint development on Backlog. [Feature 1. Product Backlog Management] 1. Choose a issue type to express "product backlog". 2. You can arrange product backlog items by drag and drop. * Requirement - This uses "custom attribute" function to store the order of product backlog items. So this needs "Premium" plan or higher. - At the first time you start this extension on your project, project admin authority is needed to make a custom field on this extension. [Feature 2. Useful Milestone Creation] You can create a new milestone for a sprint with start date and end date. This feature automate the following steps 1. create a milestone with a start and end date 2. move uncompleted issues from the currently selected milestone to a new milestone 3. archive the old milestone (set it to not appear on the home screen) * Requirement - Anyone but guest users can use it. [Releases] # 2.0.6 Updated dependencies # 2.0.5 Small bug fix # 2.0.4 Subtle styling fix # 2.0.3 Small bug fix # 2.0.2 Display closed / total estimated value of product backlog items # 2.0.1 Subtle design fix # 2.0.0 Integrated milestone update functionality into the main screen. Added "Hide completed product backlog items" functionality to the settings screen. Added the ability to display the total estimated value of product backlog items. Changed the position of "Add Milestone" button. # 1.2.18 small refactoring # 1.2.17 OAuth flows can be used even in companies with strict security requirements. # 1.2.16 Fixed incorrect data when saving velocity for projects containing "_". # 1.2.15 small fix on stat layout # 1.2.14 GUI to set API keys of Backlog (only for users who cannot authenticate via OAuth2) # 1.2.13 bug fix # 1.2.12 Record Issue-Key on velocity wiki # 1.2.11 Tiny fix # 1.2.10 Layout fix # 1.2.9 New feature to archive milestone # 1.2.8 Submit content on blur on input box # 1.2.6 Subtle refactoring # 1.2.4, 1.2.5: Bug fix: velocity recording was wrong # 1.2.3: Subtle fix: number format on tooltip on chart # 1.2.2: Apply issue template on create issue # 1.2.1: Subtle bug fix # 1.2.0: Added features to show/record velocity of PBI and other tasks # 1.1.0: Added features to edit/add milestone and a new issue type for pruduct backlog # 1.0.8: Added a feature to create a new product backlog item (issue) # 1.0.7: Added a feature to edit status and actualHours only at completed issue # 1.0.6: Added a feature to view and edit estimatedHours as story point # 1.0.5: Added a feature to view and edit issue title and detail # 1.0.4: Bug fixes # 1.0.3: Added a feature to arrange product backlog # 1.0.2: Fixed subtle issues # 1.0.1: Fixed subtle issues # 1.0.0: First release