Unit tests for scalar #76

1. 
   sipa commented at 8:20 am on October 29, 2014: contributor
2. Switch scalar to use get/set 32-byte arrays eca6cdb123
3. Add unit tests for scalars.

   Also add a secp256k1_scalar_is_one function.

   79359302fb
4. sipa force-pushed on Oct 29, 2014
5. 
   gmaxwell commented at 5:37 pm on October 29, 2014: contributor

   ACK, though could potentially use some fixed text points in addition to the random ones.
6. sipa merged this on Oct 30, 2014
7. sipa closed this on Oct 30, 2014

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8. sipa referenced this in commit 9c698f16d6 on Oct 30, 2014

Contributors
sipa gmaxwell