Configure options reorganization
Make git ignore bench_recover when configured with benchmark enabled
Merge pull request #165

6a59012 Make git ignore bench_recover when configured with benchmark enabled (Pavel Janík)
Merge pull request #160

1ba4a60 Configure options reorganization (Pieter Wuille)
Optimize verification: avoid field inverse

Suggested by Greg Maxwell.
Add explanation about how inversion can be avoided
Merge pull request #123

13278f6 Add explanation about how inversion can be avoided (Pieter Wuille)
ce7eb6f Optimize verification: avoid field inverse (Pieter Wuille)
Remove GMP field implementation
Merge pull request #168

7277fd7 Remove GMP field implementation (Pieter Wuille)
Use Co-Z arithmetic for precomputations

- Selected Co-Z formulas from "Scalar Multiplication on Weierstraß Elliptic Curves from Co-Z Arithmetic" (Goundar, Joye, et. al.) added as group methods with new type sep256k1_coz_t.
- Co-Z methods used for A and G point precomputations.
- WINDOW_A size increased to 6 since the precomputation is much faster per-point.
- DBLU cost: 3M+4S, ZADDU cost: 5M+2S.
- Take advantage of z-ratios from Co-Z to speed up table inversion.