v0.10.0-beta1

• simple refactoring of ASCIIToLower() and ASCIIToUpper();
• changed signature of CollectSlice(), including making be a generic function (CollectSlice[T, U]());
• refactored CollectSliceIntoStringSlice() in terms of CollectSlice[T, U]();
• refactor CollectSliceOfInt() in terms of CollectSliceOfInteger[T]();
• refactored EqualSliceOfInt() in terms of EqualSliceOfInteger[T]();
• refactored EqualSliceOfUint() in terms of EqualSliceOfInteger[T]();
• changed signature of EqualSlice(), including making be a generic function (EqualSlice[T]());
• renamed SelectSliceOfUinteger() => SelectSliceOfInteger();
• simplified implementation of SelectSliceOfInteger[T]();
• added unit-tests for SelectSliceOfInt() and SelectSliceOfString();
• refactored SelectSliceOfInt() in terms of SelectSliceOfInteger[T]();
• refactored SelectSliceOfUint() in terms of SelectSliceOfInteger[T]();
• simplified implementation of SelectSliceOfString();