* simplify build system thanks to upstream changes * add secp version to library version, bump to 0.6 * bump upstream to 0.3.1 ([`git diff 6138d73be471ece4717af8e7f419dde0a414568e..346a053d4c442e08191f075c3932d03140579d47`](6138d73be4..346a053d4c))
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