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)
weak normalization
Weak normalization for secp256k1_fe_equal
Add _fe_normalizes_to_zero method
Add _normalizes_to_zero_var variant