Recover the lost part of notes from the defd4fd commit.
Tracked and fixed bug in meshconstruct tickled by sortest
Backtrack the meshconstruct change. Make the fix in sortest only
Removed ran1 usage (but not yet all the code) from whole base
Removed all ran1 references and code. Reorganized commons appropriately
Fix bug in slicegweb caused by ifix not initialized.
Remove dependence on randc.c and randc.c from objects and git.
Remove randf.f, moving gasdev to ranlux.f and others to average.f
Completion of object subtraction code and start of surface of revolution

Subtractive objects appear to be working as expected. RefManual updated.
Surfaces of revolution implemented.
Implement general surfaces of revolution. Type 7.

Also updated RefManual.
Update geommany to reflect correction of error
in sphere outward normal section.