Merge pull request #104 from RagnarHauge/master

CRA-690: Fixed bug with bad memory handling in LAS-wells. Also included ...
CRA-690: Fixed indexing bug introduced when including EASTING/NORTHING, and added change of all logs names to uppercase, to make access case insensitive.
Merge branch 'CRA-690v2'
CRA-693: These files were never intended to be written as SEGY, and has become so just as a side effect of generalisation of grid writing routines. But should work ok now.
CRA-693: Manual updates
CRA-695: Fixed SegY-writing as requested