Changed mesh options slightly
Slight tweaks to dipole_source.cc: moved the source centre closer to the cube corner to exagerate the impact of graded mesh. Also changed distance to grade mesh - should really be a distance from the closest vertex node to the source centre
Added object dimension to parameter reader. These are used in Datapostprocessor to calculate the fields within the object (the material parameters change)
Added some control on number of cycles according to the polynomial order