Update TBA.cs

Removed Loops, Fixed Version, Changed all arrows to use the variable, added "What Next?" Question to the amulet. Removed Answerblank and stoponce variables. Added .toLower. to ensure that all commands are read in LowerCase, removed statement explaining that all commands must be in lowercase. Changed the version commands and version display so that Running Version/version is displayed, then the actual version as a variable is concatenated.