Integrating http://code.google.com/p/gnupg-ecc/source/detail?r=15 .

This merge went smoothly and didn't need any code written (as opposed to parallel gnupg integration). The checked in code was tested through gnupg with 'gnupg --gen-key (select ECC)'.

This change corresponds to earlier check in gnupg project. This branch, ECC-INTEGRATION-1-5, corresponds to ECC-INTEGRATION-2-1 in gnupg project.