CRA-538, CRA-678: Index error when blocking wells to interval simboxes.
CRA-538: Writing of avg, min and max of backgrounds not as log values.
CRA-538: Memory leak background grids.
CRA-505, CRA-644: Moved PrintSettings to CommonData. Changed some of the WriteHeaders.
CRA-669: Fixed bug with CheckThatDataCoverGrid.
CRA-632: A grid was deleted too soon in ModelAVODynamic.
CRA-644: Updated outer loop.
CRA-596: Moved set up of debug level from ModelGeneral to CommonData, it caused problems when ModelGeneral was set up the second time (multiple intervals).
CRA-531: Fixed an inconsistency with WELLMISSING and RMISSING when reading rho-logs.
Merge pull request #92 from hgolsen/CRA-505

CRA-677 and CRA-678
Merge branch 'CRA-505' of git://github.com/CRAVA/crava into CRA-505