Fix OCM help on Linux

The OCM.chm and OCMFrame.chm have been combined into one file
OCMFrame.chm. The Chm file needed to be extracted to its base files
in the OcmFrame directory, because the Gecko browser cannot reference
the htm files from within the Chm format. All the htm filenames and
hrefs were also converted to lowercase because of case differences
between page titles and filenames (eg for words like "Of"), which caused
problems looking up a page by its title.

This helps fix the display for OCM help pages in the Choosing
Anthropology Categories Dialog. FWNX-464

Change-Id: I12f57b48c98c3d673a6e2fafb3376a29ae4f0dc1