Post-trial Identification made stricter

extractTrial() simplified
Login checks updates so that the checks for Trial Type columns is the same as the checks for Timing columns
Updated htaccess, gitignore, getdata

htaccess should now exclude files outside of code/ that are not images or audio

getdata has been updated, to look for $experimentName . '-Data', as well as moving files into its own subfolder of Data/

GitIgnore has been updated to reflect changes of Data/
Merge pull request #30 from TysonKerr/Post-trial-columns-update

Post-trial Identification made stricter
Merge branch 'pr/n31_TysonKerr'