Merge pull request #231 from Det-Kongelige-Bibliotek/custom_ranking_off

*8834* Lucene plugin custom ranking should be off by default.
Added ULS Local script to print current OJS version information
Initial add of Plum Analytics Widget
Update submodule lib/pkp to pull from ulsdevteam.
Change User Home link in navbar from journal "index" to current journal.
Point lib/pkp to rebased version of uls-install