alps configury changes

Clean up the orte_check_alps.m4.  There was a little of
unnecesary stuff for handling cle 5, since it wasn't actually
doing the right thing, which would be to use pkg-config to
find dependencies both for dynamic and static linking.

Decouple the searching for alps libs, etc. from cray pmi.

Switch the alps ess  and alps odls components' config files
to use the ALPS m4 macro.
alps configury fixes

Improve a check for detecting CLE release.
Improve an error message.