ERT-769: Moved load_segment flag further in.

This change was introduced to ensure that the is_MSW flag is correctly
set on a per-well basis, even when the load_segment flag is false. The
commit also incldues reverting some test asserts in the Python test.
Merge pull request #633 from joakim-hove/769-fixup

ERT-769: Moved load_segment flag further in.
ERT-619 added support for extended en in timeRange
ERT-765: Fix sqrt analysis module
Merge pull request #635 from chflo/ert_765_fix_sqrt_analysis_module

ERT-765: Fix sqrt analysis module
ERT-619 changed name on unit test
ERT-619 Fix in the way Day2 is set
ERT-619 Fix for month extended test
Merge pull request #634 from iLoop2/ERT-619

ERT-619 FMU: Interpolated summary vectors in CSV export
ERT-619 Missing label StatoilData
Merge pull request #636 from iLoop2/ERT-619

ERT-619 Missing label StatoilData