#2435 Fixed coverage and lofty tests broken by r21910.
Fixed mechanics test for parallel race condition.
Fixed Xdmf converter to use the provided path rather than a hardcoded one.

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21935 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2477/#2300 Added an !AbstractAcinarUnit interface class

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21937 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2540 added sanity checks to cell based demo tutorial

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21938 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2441 A couple of todos left over from the cell population count writers change
 * The other two writer containers have been converted from std::set to std::vector
 * The `OutputFileHandler` is passed through the call stack (in preference of the directory name)

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21939 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2540 removed usage of cxxtest testsuite in tutorial, edited comments

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21940 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2477/#2300 Fix doxygen

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21947 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2552 Beef up PDE test by implementing todo left in r14468/#1967

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21948 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2441/#2552 Fix the .pvd file writing issue and beef-up testing.

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21962 b5f69653-2bf5-0310-8201-b0dafb8e1405
Respect guideline on the word "current"!

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21967 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2441/#2552 Fix r21962 for no VTK case

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21970 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2552 Revert r21837 now that the issue has been fixed

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21971 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2561 Improve tests to better detect if permutation method is broken (which it is for bidomain with bath!)

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21980 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2561 Revert + tidy.

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21984 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2561 This r21980 stronger test should not have been reverted

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21985 b5f69653-2bf5-0310-8201-b0dafb8e1405
Fix nightly memory testing by adding a new flexible suppression.

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@21986 b5f69653-2bf5-0310-8201-b0dafb8e1405