Fix coredump in SaveScalars/VectorStatistics() when using p-elements in parallel. Doesn't
really fix the issue, that the DOF values are not necessarily directly field variable
values, as is the case with nodal elements and as assumed by VectorStatistics().


git-svn-id: svn://svn.code.sf.net/p/elmerfem/code/trunk@6952 04224531-1f84-46d8-96ce-875b9e37dce3
small fix to previous commit.


git-svn-id: svn://svn.code.sf.net/p/elmerfem/code/trunk@6953 04224531-1f84-46d8-96ce-875b9e37dce3
One more fix to VectorStatistics() with parallel p-elements...


git-svn-id: svn://svn.code.sf.net/p/elmerfem/code/trunk@6954 04224531-1f84-46d8-96ce-875b9e37dce3
...


git-svn-id: svn://svn.code.sf.net/p/elmerfem/code/trunk@6955 04224531-1f84-46d8-96ce-875b9e37dce3