Merge commits with sync-upstream.sh

da0092bc 10f9bd84 297ce820 f34b5cae 920a0e5f 9526874d aa1b889b 20d791ed 3e7b2ea1 21c188b3 8fa41201 515a5dbd c74a7b7e 74c34e72 7006f1b9 ea5e8a9c 793ad901 2e5e4b67 fecf436d 49f608de 49002274 6ad908aa 4f01840b 61ae37c6 486205aa 5d0dbef0 0559fc6e be6944ad a69df3ad b39d431a 0b83b203 09971a3f 9281c9f4 423b6d19 a310e79e 39a36db9 a1102b12

Deal with
  - secp256k1_test_rng removal in commit
    77a19750b4
  - ecmult_gen context simplification after making table static in commit
    3b0c2185ea

.gitignore

@@ -1,21 +1,17 @@
-bench_inv
-bench_ecdh
+bench
 bench_ecmult
 bench_generator
 bench_rangeproof
-bench_schnorrsig
-bench_sign
-bench_verify
-bench_recover
 bench_internal
 tests
 exhaustive_tests
-gen_context
-gen_ecmult_static_pre_g
+precompute_ecmult_gen
+precompute_ecmult
 valgrind_ctime_test
 *.exe
 *.so
 *.a
+*.csv
 !.gitignore
 
 Makefile
@@ -47,7 +43,6 @@ coverage.*.html
 
 src/libsecp256k1-config.h
 src/libsecp256k1-config.h.in
-src/ecmult_static_context.h
 build-aux/config.guess
 build-aux/config.sub
 build-aux/depcomp