Per discuss in #56, I decide to change the result of ToCamelCase to make it align with common sense. In the past, ToCamelCase converts camel_case_string to CamelCaseString, in which the first letter is upper case; Starting from this release, ToCamelCase returns camelCaseString instead. If we want to convert string to "upper" camel case, we can use new API ToPascalCase.

If you have any concern, please feel free to send issue to me. Thanks.

Full Changelog: https://github.com/huandu/xstrings/compare/v1.4.0...v1.5.0