Added repo libsodium
Add createKeyPair() for signing, with a basic test
update submodules upon make
remove absolute path from erasure.go, clean up makefile
Merge pull request #54 from DavidVorick/crypto

Crypto
Merge pull request #55 from DavidVorick/makefileHotfix

Makefile hotfix
added a 'todo' file to the git ignore, for convenience
travis ci should be able to use <sodium.h> now
Merge pull request #56 from DavidVorick/crypto

Fix travis ci for libsodium
Initialize submodules before updating.
Merge pull request #58 from Jonbeek/submodules

Initialize submodules before updating.
update submodules upon installing dependencies