CRA-700: Background grids were deleted too soon.
CRA-505: Temp.
CRA-505, CRA-707: Removed the option of resample to a FFTGRid. Pull from upstream.
Merge pull request #121 from RagnarHauge/CRA-505

Cra 505
#CRA-704, #CRA-700 Memory problem fixes
CRA-688, CRA-700: Writing fix for forward modelling.
Merge branch 'CRA-505' of https://github.com/CRAVA/crava into CRA-505

Conflicts:
	src/avoinversion.cpp
CRA-505: Grid was not allocated in SetupDepthConversion.
#CRA-704 Test case 3. TimeLine is now deleted in CommonData
Merge pull request #122 from enesvold/CRA-505

CRA-704
CRA-505: Merge with rhauge. Seis cube type was not set correctly in modelavodynamic.
CRA-505: Merge with enesvold.
Merge pull request #123 from hgolsen/CRA-505

Cra 707
CRA-708: Fixed error in text in main, order of variables in constructors in wavelet.
Merge branch 'CRA-505' of git://github.com/CRAVA/crava into CRA-708

Conflicts:
	main.cpp
#CRA-710 Surfaces are written to files in simbox setup
#CRA-505
#CRA-710 Fixed some warnings
Merge branch 'CRA-710' into CRA-505
Merge pull request #124 from enesvold/CRA-505

CRA-710