Version 1.23, 02/22/14

-Graphic bug fixed

Version 1.22, 02/22/14

-Fixed graphics for the case when bvc location is input

Version 1.21, 02/21/14

-Minor changes to the documentation

-Added graphics feature

-Fixed up navigation

-Fixed documentation zoom feature it no longer obscures the content

-Fixed clear button functionality

-Added feature input changes cause output to be cleared