Build NPMJS registry variables by `ct_build_s2i_npm_registry`
Build NPMJS registry variables by `ct_build_s2i_npm_registry`

npmJS parameters are built by function `ct_build_s2i_npm_registry`
and passed into s2i_args variable.

Move `ct_npm_works` into first NodeJS part test.

openshift/sti-nodejs,openshift/sti-nodejs