add memcached configuration option, small corrections for the build process and add installDrupal.sh file to the release
# See http://help.github.com/ignore-files/ for more about ignoring files.
# compiled output
/dist
/tmp
# dependencies
/node_modules
/bower_components
# misc
/.sass-cache
/connect.lock
/coverage/*
/libpeerconnection.log
npm-debug.log*
testem.log