Add support for the new FileHandle FileEntity architecture (in alpha test mode). add File icon, circumvent cache for preview images, SWC-406, and tests.
fix wiki button/editor layout for pages where it is not shown with full width. fix TOC scrollto function (instead of just bringing it into view, scroll so that the element is at the top of the page)
SWC-372: improve markdown performance (cut time in half) but maintain functionality. add a convenience editor for entering tab delimitted table data. organize widget menu commands, update pom synapse-version
merge with upstream develop
fix Insert Wiki button location on Folder page, fix filehandleservlet test setup, and cleanup
Merge branch 'develop' of https://github.com/Sage-Bionetworks/SynapseWebClient into develop
extract constant
add filehandles to GWT bundle translation test
changes from code review
fix licensed downloader test
Merge pull request #203 from jay-hodgson/develop

FileHandle FileEntity support (in alpha area), SWC-372: improve markdown performance, new tabbed table import editor
enhancements (from Mette) for wiki writing
handle toc header class name during parse, and make it relative size
help the SEO effort that should begin soon
fix test
Merge pull request #204 from jay-hodgson/develop

SWC-419: wiki widget enhancements
SWC-208: (SEO) give unique page titles, make the links that are on the home page and search result pages have standard hrefs (instead of the clicks handled by javascript). utilize Google crawler AJAX site support.
do not include meta fragment element, let crawler follow link to production instead
reload if history token doesn't start with a bang.
code review fixes