Added keyword SMRYDIMS
Added getDataSize() method to DeckKeyword.
Added assert of the size of the vectors used to create a CornerPoint grid.
Added DEPTHZ as alternative to TOPS.
Merge pull request #200 from joakim-hove/EclipseGrid

Eclipse grid
EclipseGrid: do not add integers to the addresses of const char* pointers

this results in funny error messages and (if the integers are large
enough) in segfaults. thanks to @atgeirr for pointing this out!
Merge pull request #205 from andlaus/EclipseGrid_fix_throws

EclipseGrid: do not add integers to the addresses of const char* pointers