add external file support to synapse client, and Wiki for FileEntity (base on entity type rather than test website mode). solidify tests around Uploader
Merge branch 'SWC-417' into develop
update pom to latest plfm dev version to bring in Synapse Java client change necessary to support external FileHandle
fixes after a full pass
add test for updating external filehandle
bug fixes (set special attribute for ToC header style, and guard against invalid entity name from filename
fix Header ToC test
merge with upstream develop
from code review
fix test
Merge pull request #208 from jay-hodgson/develop

SWC-417: SWC-418: add external file support to synapse client, and Wiki for FileEntity