ignore Xamarin .userprefs
Towards #24 - post build event for libsodium-net

Copy the dll's based on the platform

Towards #24 - post build event for Test proj

Copy the dll's based on the platform

Should check condition on variable $OS not $Platform fixes #24

This includes too small fix to post build it on windows

remove added whitespace on Tests.csproj
Including libsodium-64.dll, copying to output
Merge pull request #26 from fraga/ignoreXamarinUserPrefs

ignore Xamarin .userprefs
Merge pull request #27 from fraga/postBuildEvents

Towards #24 - post build event for libsodium-net
renaming file to match class name
Adding crypto_generichash_blake2b_salt_personal #7

Make sure libsodium version is > 0.4.5