OCBv3 according http://tools.ietf.org/html/draft-krovetz-ocb-03
ocb3_init fix (preventing index overflow)
ocb_init fix (preventing index overflow)
add OCBv3 testvectors
update makefiles
ocb3: don't zero ocb3 context in ocb3_{de,en}crypt_last
Merge branch 'feature/OCBv3' into develop