ERT-652 Added support for gen param
ERT-673: Fixed bug in matrix_diag_std()
ERT-672 Disable export button if no keywords found to export
Merge pull request #534 from joakim-hove/ERT-673-matrix-diag-std

ERT-673: Fixed bug in matrix_diag_std()
Introduced a new fs pointer, to separate reading fs and writing fs for active_list.
Merge pull request #535 from iLoop2/ERT-674

ERT-672 Export bug: missing realisations?
ERT-652 Added exporter to figure out export method
ERT-652 Refactor out the export logic from the GUI
Merge pull request #536 from flikka/ERT-667-segfault

Introduced a new fs pointer, to separate reading fs and writing fs for a...
Merge remote-tracking branch 'upstream/master' into ERT-652

Conflicts:
	devel/python/python/ert_gui/tools/export/export_tool.py
ERT-652 Fix after merge
ERT-669: Fixed init bug iterated_ensemble_smoother
Merge pull request #538 from chflo/ERT_669_init_iterated_es_bug

ERT-669: Fixed init bug iterated_ensemble_smoother
ERT-652: Minor change after review
Merge pull request #539 from chflo/PR_537

ERT-652 Export of GEN_PARAM and refactor of export_panel.py
ERT-649 - Added support for percentile calculations
ERT-649 - Basic plotting of percentiles
ERT-649 - Added support for turning off refcase and observations
ERT-649 - Added statistics plot to GEN_DATA
ERT-649 - Improved quality of statistics plot