Revert part of 6e255a9503a3424c7e2d20f61c367a6d0c2b2b5e

Build fat binaries i386, Chrome is still 32 bit only
Merge pull request #257 from zomps/mac_enable_i386

Revert part of 6e255a9503a3424c7e2d20f61c367a6d0c2b2b5e

This allows plugins running in Chrome (32bit) to use OpenSC PKCS#11, which would otherwise be only 64bit. Tokend "hides" the cpu architecture issue otherwise.