MAD-X no longer provides 32 bit binaries

[michi42]

Upon upgrading the MAD-X binaries, I noticed that since version 5.04.00, MAD-X no longer provides 32 bit binaries: http://madx.web.cern.ch/madx/releases/5.04.00/

Probably this is a side-effect of changing to C++11 (according to the changelog).

For now, I've left in the old binaries for 32 bit, which is not ideal as they might not support some features and so the behaviour might differ between 32 bit and 64 bit OS. Do we still need to support 32 bit architectures in JMad?