Removed Mattijs specific unitTestCases directory and moved CHANGES-splitCyclic...

Removed Mattijs specific unitTestCases directory and moved CHANGES-splitCyclic into the doc/changes directory.

unitTestCases/README.txt

-channel395/
-    - splitCyclic version
-    dev/
-    - dev version
-
-singleCyclic
-    - single cyclic z=0 to z=4
-    dev/
-    - dev version
-
-t-junction-with-fan
-    - t-junction tutorial to test baffles and fan-cyclics
-    dev/
-    - dev version
-
-twoCavityCyclicForWallDistance
-    - single cyclic. bottom split into two patches to see how
-    wallDistance transfers through cyclic.