* Renamed workspace-dock to workspace-main-dock to be more clear what
it's used for
* Added some helping comments to workspace.js
* Redone some comments from various files
* Added wrapping widgetSpaceSet to workspace's material view to be in
line with everything else
* Removed settings css rules from screen.scss as deprecated
* Added overriding grid_1 class rule to workspace's material view as it
still uses grid to render widgets even if not needed
* Added backingBean to workspace's material's reading view
* Added workspace's material's reading views
* Added material reading view's toc
* Added scripts to hide/show toc in material reading view
* Changed workspace.reading.contentArea to more simplified version as of
workspace.reading.content (this affacts few .xhtml files within
workspaces plugin)
* Removed unececcary div ele,ents from workspace.xhtml, they should not
be needed to create functional widgetSpace
* Added nececcary styles for the above changes