Created versions of the splash screen without stretching for each of the various screen sizes required for iOS and Android. closes #102
Also created patch nine files but found they did not get used correctly. closes #103
Set the splash screen to hide when the android version has finished loading, which overrides the max splash screen timeout. closes #83
Added a unit test for mean reaction time. #25
Added calculation of the standard deviation in valid response times and added a unit test. #25
Added calculation of the standard deviation in valid response times and added a unit test. #25
Added the output response time and standard deviation into the report with number formatting.