Added ResourceLoader
SWC-774
Merge pull request #499 from jay-hodgson/release-8

SWC-774: merge from release-7
SWC-778: use a span instead of an anchor, and style the span
Merge pull request #504 from jay-hodgson/release-8

SWC-778: use a span instead of an anchor, and style the span
SWC-783: hide project tab ui in alpha mode only
edit existing Synapse markdown widgets
Merge pull request #510 from jay-hodgson/release-8

SWC-783: hide project tab ui in alpha mode only
added async resource loader, and swc-737 - initial cytoscape integration
remove head.js method
refactor and add tests
Merge branch 'release-8' of https://github.com/Sage-Bionetworks/SynapseWebClient into develop
Merge pull request #514 from jay-hodgson/develop

Merge down from release-8 (hide tabs and fix wiki subpage links)
SWC-779 - add spark to shiny white list
Merge pull request #515 from dburdick/release-8

SWC-779 - add spark to shiny white list
Merge pull request #511 from heidiso/develop

SWC-775 [Markdown] Added syntax for explicit table header
SWC-789: if markdown has changed from when we opened, then pop up a message and block save (but editor is still showing so that you can copy your changes elsewhere)
added the portal info to the user-agent header for SWC-785
fixed conflicting property file name
Merge pull request #519 from john-hill/SWC-785

Swc 785