Added tests to validate the index and length parameters of the underlying Substring.
SafeSubstring was passing "length" as "startIndex" incorrectly.
…oreNamesTests to tests
Milliseconds are lost!
make test "Can_Mock_UploadFile()" cross-platform
make tests "Comma_In_String_Does_Not_Cause_NewLine()" and "Literal_Quote_In_String_Does_Not_Ignore_Comma()" cross-platform
enable building on linux
change nuget.exe to NuGet.exe for linux building
change nuget.targets to NuGet.targets for linux building
Adding async http string extension methods