Create a simpler post-clone exp by removing Jasmine as a Git submodule.

It is the only git submodule, that provides no extra benefit as one.

Issue Ref: https://issues.apache.org/jira/browse/RIPPLE-13

Note: Jasmine v1.3.1 was re-added directly into the repo.
Remove support for Git submodules because they are not being used.

This removes use of submodules in the project in general, which
will remove an extra step from 'configure', and ultimately create
a simpler and more straightforward post-clone step (i.e. just npm).