Merge pull request #88 from hgolsen/CRA-505

Cra 505: Bugfixes
CRA-669: Added check that seismic data cover inversion interval after interval_simboxes are created.
CRA-505: Removed some warnings.
CRA-505: minor fix.
CRA-505, CRA-559, CRA-561, CRA-568, CRA-593, CRA-668: Store large grids as float instead of double.
#CRA-664, #CRA-665
Merge branch 'CRA-664' into CRA-505
Merge pull request #89 from enesvold/CRA-505

Cra 664, Cra 665
CRA-505, CRA-636: minor fix.
CRA-505, CRA-636: minor fix.
Merge branch 'CRA-505' of git://github.com/CRAVA/crava into CRA-505