example of orientation-matrix support, userArrayCalcs, moved pvHistory
to user-programming section

which the software was built mounts the file system by a different name
than the name that the ioc will be able to use.  (E.g., sysadmin takes
advantage of mount command to rename file system from, say,
"/export/home/..." to "/home/...")

deleted commented-out lines, which attract a "file parse error" message from dbLoadTemplate().  Also deleted an extra '}'

Support for orientation matrix, four-circle diffractometer was supposed to be commented out by default

Canberra)