Changing add functions in ParamComposite.
Merge branch 'devel' into optParam
Merge branch 'devel' into optParam
Removing accidential commit of ioUtil.h swap file.
Modifying ScalarParam.
Merge branch 'devel' into optParam
Refactoring Parameter and subclasses, allowing for optional parameters.
Moved ParamTesth file, added missing include in Parameter.cpp.
Debugging MPI optParam parameter input.
Merge branch 'devel' into optParam
Adding echoing of absent optional labels.
Overloaded read and load functions in ParamComposite
Small changes to ParamComposite.
Working on param/mpi tests.
Saving of optional parameters with saveOptional.
Adding static Parameter::saveOptional methods.
Improving util/param/serial tests of optional parameters.
Fixing doxygen blocks in Util::Parameter and subclasses.
Working on CArray2DParam load/save (still buggy).
Fixed bug in param/serial/ParameterTest.h