Enables drag and drop sub-task re-ordering in JIRA 7 browse view. Based on JIRAssic Park: Subtaskadon, updated for JIRA 7.0.
Image from store
(2017-12-15) Anthony Trinh: Does what it says it will do. Solves an annoying gripe.
(2017-07-11, v:7.0.0) John Harris: Fails if browse view loaded via XHR Click on a sub task, then click on the parent task title. The story is shown after XHR requests but the DND modification no longer works.