WL-3574 Remove PostEm
WL-3574 Remove section info.
WL-3574 Remove Samigo.
WL-3574 Remove OSP.
WL-3574 Roster -> Site Members.
WL-3574 Gradebook -> Markbook
WL-3574 Statistics -> Site Stats.
WL-3574 Rich Text Editor -> WYSIWYG Editor
Merge pull request #7 from ox-it/WL-3574

WL-3574 Update help to match tool name changes.