Merge pull request #135 from pdahle/master

CRA-719 Fixed bug in Sgri resampling introduced with resampling fix.
CRA-43 Parallelized resampling of data in method FFTGrid::fillInData()
CRA-43 Added keyword <number-of-threads> to XML interface under <project-settings><advanced-settings>
CRA-43 Added handling of traces-outside-grid for FFTGrid::makeTraceFromStormGrid()
CRA-43 Paralellization of background model generation (non-multizone)
 CRA-43 Parallelization of multi-zone background model generation
 CRA-43 Parallelization of the well processing
CRA-43 Removed superfluous uses of findClosestFactorableNumber() in FFTGrid::fillInData()
CRA-43 Preparing Crava::computePostMeanResidAndFFTCov() for parallelization
CRA-43 Improved speedup in FFTGRId::fillInData() by moving declarations of rfftwnd_plan and fftw_real outside i-loop thus reducing the number of declarations with nxp
CRA-43 Further restructuring of Crava::computePostMeanResidAndFFTCov() to prepare for parallelization
CRA-43 Further restructuring of Crava::computePostMeanResidAndFFTCov() to prepare for parallelization. Reduced scope of vectors and matrices
CRA-43 Added arguments to Crava::computePostMeanResidAndFFTCov()
CRA-43 Cleaned up Crava::computePostMeanResidAndFFTCov()
CRA-43 Added (i,j,k) access for FFTGrids in Crava::computePostMeanResidAndFFTCov
CRA-43 Made a method SeismicParametersHolder::getParameterCovariance() to get parameter variances for a given set of i,j,k. Also streamlined existing methods getNextParameterCovariance ...
CRA-43 Finished parallelization of inversion loop in Crava::computePostMeanResidAndFFTCov()
Merge branch 'CRA-43'