Rename aldormain.c to xyz-aldormain.c; this will allow easier parallel
builds
Rename xyzmain.c to xyz-aldormain.c in .gitignore files
tst_mint.c: No need to import from already cascaded import (Assert will
always import GeneralAssert along with itself).
foamlib tests: Add the option to compile to executable.
comsg.c: Add a couple of functions exposing the current error message list
to the outside world.
Move test library init/fini methods into testlib.c; might as well just have
one version of these
Fix bug814; "with { (a,b,c,d): % }" is now an error.
Arguably it could be legal and imply the category exports the listed
ids.  But not supported for the moment.