cosmetic changes plus change to ignore all except module directories when presenting menu.
Removed withMenus.R, having moved its code to other files. Fixed DESCRIPTION accordingly.
copied runTest.swirl1cmd to runTest.newcmd, converting it to expectation format;

changed Data_Analysis/module1/mod1_new.csv: most swirl1cmd's changed to newcmd; first two old swirl1cmds changed to "equivalent" expectations