NodeModule
seed contains array of node module that are also git repos
package manager passed on init / construction
move bits to git-seed-core
use the plugin
search moved into git-seed-core
clone() calls on to install()
GitSeed.pull only pulls the root repo if list is not specified
pull on the other repos now that root is up-to-date
clarify
call packagemanager install after pull
tidy
Merge branch 'feature/modules' into develop