Fix for JENKINS-22342

Only normalize with slash certain repository types.
Should match behaviour prior to
7abfafcf58addbce2c268dbfed1910a90d4fe2a3
Add tests for gitweb repo broswer

Add tests for gitweb, which include cover for JENKINS-22342
Merge branch 'master' of https://github.com/Joibel/git-plugin into master-add-gitweb-url-fix

Conflicts:
	src/main/java/hudson/plugins/git/browser/RedmineWeb.java