SWC-856 Fixed
SWC-856 Clean up code for the wiki's image editor
SWC-856 Modify the handling of buttons for wiki's image editor
Merge pull request #583 from jay-hodgson/release-13

compression filter test
Merge pull request #584 from jay-hodgson/release-13

modify compression filter
Merge pull request #582 from heidiso/release-13

SWC-856 Fixed disabled submit buttons for tabs in the insert image dialog
Merge pull request #585 from jay-hodgson/release-13

SWC-864: promote reference widget out of alpha. bookmark needs more time in testing...
SWC-871: run the SynapseMarkdownWidgetParser completeParse as well in the LinkParser (since the extracted text may be a widget container awaiting extraction)