Clone/pull

[larshp]

Hi,
In ZABAPGIT, the creation of repositories happens without automatic pull(https://github.com/larshp/abapGit/blob/master/changelog.txt#L169), this gives a better split of operations and error handling, plus gives the user an overview of what will happen before doing a pull, as object names are unique in ABAP(compared to cloing to a new folder in file system)

Currently it looks like both creation and pull is the same operation,

void cloneRepository(String url, String branch, String targetPackage, String transportRequest, String user,
			String password, IProgressMonitor monitor);

Pull is also split into 2 steps, in order to support a restful approach, see http://docs.abapgit.org/development/api.html, also see #7