Merge pull request #278 from jay-hodgson/SWC-528-progressbar

SWC-528: javascript callback to a java method, use xhr.upload.onprogress
Merge pull request #274 from jay-hodgson/SWC-541

SWC-541
Merge pull request #279 from jay-hodgson/SWC-523

SWC-523: move shiny to alpha and SWC-452: target markdown tables
fix code overflow
Merge code overflow into release-1.24
Merge pull request #282 from jay-hodgson/release-1.24

commit fix code overflow to release