Added plugins directory to build script.
Added plugins directory to build script.

TimothyGu/ejs-tj,xanxiver/ejs,cnwhy/ejs,insidewarehouse/ejs,cnwhy/ejs,rpaterson/ejs,operatino/ejs,mde/ejs,kolonse/ejs,insidewarehouse/ejs,tyduptyler13/ejs,zensh/ejs,jtsay362/solveforall-ejs2,kolonse/ejs,mmis1000/ejs-promise,TimothyGu/ejs-tj,zensh/ejs