#2441 - try to fix nightly coverage tests

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@20980 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2441 - try to fix nightly doxygen tests

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@20981 b5f69653-2bf5-0310-8201-b0dafb8e1405