added boilerplate option to change the dir.build property
added boilerplate option to change the dir.build property

jacquesdeklerk/jacquesdeklerk,firnny29-cts/helloworld1,fady/ant-build-script,h5bp/ant-build-script,thetrickster/foundation-bc,thetrickster/foundation-bc,jacquesdeklerk/jacquesdeklerk,thetrickster/foundation-bc,thetrickster/foundation-bc,jacquesdeklerk/jacquesdeklerk