[CRA-283]
Reading input gravity files. Only one input file with all data (5 columns), removed input of location coordinates.

Added ModelGravityStatic and ModelGravityDynamic.
[CRA-283],[CRA-285]
Initial implementation of gravimetric inversion. Not finished, not completely tested.
Fixed conflicts after merge.
Merge branch 'Fix_conflicts' into CRA-283+285

Conflicts:
	crava.vcxproj.filters
Merge branch 'master' into CRA-283+285
Merge branch 'master' into CRA-283+285
[CRA-283],[CRA-285] Fix unintended changes.
[CRA-283],[CRA-285] Fixing VS project files.
[CRA-283],[CRA-285] Fixes while trying to test. A lot of debug-crap.
Merge branch 'master' of git://github.com/CRAVA/crava

Conflicts:
	crava.vcxproj
	crava.vcxproj.filters
	src/correlatedrocksamples.cpp
	src/timeevolution.cpp
[CRA-283],[CRA-285] Removed unused variables to avoid warnings.
[CRA-283],[CRA-285] Removed unused variables to avoid warnings.
[CRA-283],[CRA-285] Cosmetic changes to gravimetry code.
[CRA-283],[CRA-285] Cosmetic changes to gravimetry code.
Merge pull request #42 from pdahle/master

CRA-598 Do not write background model in depth when time-to-depth mappin...
Merge pull request #40 from veralh/master

First attempt of gravimetric inversion into github.
CRA-603
1. Removed some trailing blanks leftover from someone's previous commit.
2. Fixed crash occuring when inversion are was taken from a seismic data
   file given in CRAVA format and at the same time IL/XL range parameters
   were specified in the XML momdel file.