Update for Kick Tolerance for iPhone and iPod Touch, release 2.0, submitted to iTunes App Store

1) New Views for KT calculations for both the concepts with data input by the user;

2) Added a new section on the drill string: Heavy-weight Drillpipe;
3) Ability to Print screenshots;
4) Ability to Send screenshots by email;
5) Improvement of performance after revision of code;
6) update for iOS 4.2 or above;
7) Fixed BUG with loading data files;