Disable dynamic add procs for 32 bit and big endian environments

[jsquyres]

Per discussion on the Feb 9 2016 webex, we decided that the quickest / easiest solution for v2.0.0 is to simply disable the dynamic add procs behavior for big endian and 32 bit environments.

This will allow discussion to continue on #1345 to come to a better long-term solution (which may take a little time to get consensus, implement, test, ...etc. -- we may also want to discuss this at the upcoming face to face Dallas meeting).

It was decided that @hjelmn will do this quick fix for v2.0.0.

FYI/heads up for: @bosilca @rhc54 @ggouaillardet

[jsquyres]

@hjelmn Can you refer to #1350 in the comments in your code?

[jsquyres]

This issue is now moot -- we do not need to disable dynamic add procs for big endian and 32 bit machines. Closing this issue.