Clean up directories and files - (1) latest/: Created new directory to add sample widget pages for jQM latest version and  moved the sample widget pages which is seperated from 1.4.0.a1 directory into the directory. (2) 1.4.0.a1/: Renamed 1.4.0.a1/ to 1.4.0.a1-custom/, because the directory has only sample widgets with Custom JS.