Fixed #3127 .  This can now be merged, as far as i'm concerned!  Can now specify rotation angles about specified vectors before and after translation in SolutionUserObject.  The transformation_order specifies the order of transformations, suprise suprise!  i have added six tests that i hope will catch most bugs.  RotationMatrix utility function has been added: it is used by RichardsBorehole also; and it is tested in unit tests.
Merge pull request #3128 from WilkAndy/feature_3127

Fixed #3127 .  Can now specify rotation angles before and after translat...