Merge pull request #7 from valls/master

Readme extended
Add crypto_aead_chacha20poly1305 support
Rename libtestjni.so to libkaliumjni.so
Merge pull request #10 from lann/rename-libtestjni

Rename libtestjni.so to libkaliumjni.so
Merge pull request #9 from lann/aead_chacha20poly1305

Add crypto_aead_chacha20poly1305 support
reference INSTALL.md and clean up readme
fix typo
shared object filename
Clarify compile.sh usage for different archs.
Add examples for different architectures
Merge pull request #11 from folex/master

Clarify compile.sh usage
Exposed SigningKey's verify key
Added all architectures to build in Application.mk
Merge pull request #12 from Tabbedout/expose_verify_key

Exposed SigningKey's verify key