Workspaces.sql : modified not to rely on a Postgres db feature that seems to be unstable

begin.html :
- explicitly specified the dependence jQuery version of 1.10.2
- modified the changed API of LABKEY.(ext.)Utils.resizeToViewport()

OpenCyto.js : modified the maximum message width to be 900, in order to fit more content

OpenCytoPreprocessing.js :
- because of the change in Workspaces.sql above added the needed processing logic here to truncate the 'file:' in the front
- changed the usage of substr() to slice() as more preferable