installation: location of jquery.treeview

* Updates location of jquery.treeview to use invenio-software.org
  hosting.

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>
Merge branch 'maint-1.0' into maint-1.1

* maint-1.0:
  installation: location of jquery.treeview

Conflicts:
	Makefile.am

Signed-off-by: Tibor Simko <tibor.simko@cern.ch>