SWC-701 Added bookmarking support

**Fixed a bug that did not allow some widgets to be rendered inline where it should be
SWC-701 Merge bookmarking feature for the markdown processor
SWC-701 Made changes to the bookmarking feature

-Added an editor to the menu of widgets
-Updated syntax of bookmarks and the formatting tips
Merge branch 'develop' of https://github.com/Sage-Bionetworks/SynapseWebClient into develop
SWC-701 Bookmark feature edits/Now generates ids for bookmarks
SWC-701 Changed bookmark ids to be a string, defaulting to current time
Merge pull request #467 from heidiso/develop

SWC-701 Added bookmark/in-page linking feature to the markdown processor