* Rebased secp onto bitcoin-core's master (see https://github.com/bitcoin-s/secp256k1/pull/3) and built linux binaries
* Wrote a doc on adding to jni
* Built for website
* Added build instructions for other OSs
* Added table of contents using doctoc
* Edited .gitmodules
* Added windows binaries
* Updated secp branch
* Added osx binaries
* Added make check-java to doc
* Fixed typo
