Added String extension methods for encryption with Testcase. Also CryptConfig static class for encryption variables. Now if you use the extension methods on string, encryption will pull from CryptConfig for variables rather than from function parameters.
Pull in CryptConfig to CryptUtils, PascalCase and rewrote test for refactoring.
Merge pull request #798 from MarkWalls/master

String extension for Crypt Utility. Also new CryptConfig static class for holding encryption variables.