Fixes

NullPointerException at
org.apache.jsp.html.portlet.document_005flibrary.view_005ffile_005fentry_jsp._jspService(view_005ffile_005fentry_jsp.java:839)

if fileentry is not yet present
Merge branch 'master' of https://github.com/University-of-Potsdam-MM/liferay-portal