the configure-time checks will get confused on some systems if we
populate LIBS and CPPFLAGS with our mochi service dependencies.  Thanks
for the bug report, Chuck Cranor.

1.14.1 seems adequate for our needs

I was too quick to blame pkgconfig rules for spack's problems.  Spack
caught my own mistake (fixed in 7c38eb81).

This reverts commit e7258ee7.

not sure why spack doesn't like this commit...

This reverts commit 990d56f5.

by taking an instance id, we can hook multiple services together

New margo_init syntax requires mercury commit dc47cd4361d6 (10 October)
or newer.

Still trying to figure out why "client deregister" is having problems

Document a flag I needed with gcc-7

quote AC_MSG_ERROR's error string, not AC_MSG_ERROR itself!

forgot to mention the libraries

David Rich's environment provoked a bit of updating.  The dependency on
automake-1.15 is probably too strict but I haven't gone digging to see
how old I can go.

defined a library implementing kv_open, kv_close, kv_put, and kv_get.
Server wraps BwTree class locally.