Update for 0.4.0
Point to NuGet package,
Added HashSalsa208Sha256 with predefined limits

Fixes #55.
We maybe should add more values for: enum HashSalsa208Sha256Limit. Maybe
some in-between size.
Merge pull request #56 from bitbeans/master

Added HashSalsa208Sha256 with predefined limits
Expanded PasswordHash

Fixes #52.
- Added Moderate to HashSalsa208Sha256Limit
- Renamed HashSalsa208Sha256 (crypto_pwhash_scryptsalsa208sha256_str) to
HashSalsa208Sha256String
- Renamed HashSalsa208Sha256Verify to HashSalsa208Sha256StringVerify
- Added HashSalsa208Sha256 (crypto_pwhash_scryptsalsa208sha256) and also
some more tests.

HashSalsa208Sha256InteractiveTest() fails on my current computer
(notebook).  The libsodium doc says: if the computation didn't complete,
usually because the operating system refused to allocate the amount of
requested memory.
So i changed the Exception type of the Methods to: OutOfMemoryException.
Added HMAC functions.

Fixes #20.
- Added VerifyHmacSha256 (crypto_auth_hmacsha256_verify)
- Added VerifyHmacSha512 (crypto_auth_hmacsha512_verify)
- Added SignHmacSha256 (crypto_auth_hmacsha256)
- Added SignHmacSha512 (crypto_auth_hmacsha512)

Also added some simple tests.
Added new guy
Merge pull request #57 from bitbeans/master

Expanded PasswordHash and SecretKeyAuth
Update formatting

We use a non-standard 2-space indent, so updating back to that.
Removed comment

OPS_LIMIT are not a MB value :)
Merge pull request #59 from bitbeans/master

Removed comment