use the /silent output for xUnit tests
we don't need to log the error output, use CreatePackages meta-task
let's make the folder structure consistent
fleshed out some integration tests for references
added Blob to IGitDatabaseClient, added integration tests
added some integration tests for the Base64 versions of Blob APIs
added Trees to the base GitDatabaseClient, added some initial tests
create the Tree collection to make Everything Less Terrible
refactoring and improving Trees tests
include the FileMode values which are necessary to creating non-busted trees
catch an obscure requirement when creating trees
updated the integration tests for createing a commit and a tree :dancers: