ERT 459: Using library enkf
Merge pull request #394 from chflo/ERT_459_export_inactive_cells

ERT 459: Using library enkf
ERT-528 - Minor overall improvements
ERT-528 - GEN_KW distribution plot (several cases, value on y-axis)
Merge remote-tracking branch 'upstream/master' into ERT-528
ERT-538 - Improve binning of log-plotted data. Binning considers the logarithm.
ERT-538 - Small fixes.
Merge pull request #396 from jepebe/ERT-538

Ert 538 Improve binning of log-plotted histograms.
ERT-528 Added semicolon
Merge pull request #395 from jepebe/ERT-528

Ert 528 GEN_KW distribution plot and minor overall improvements
Bug in min/max calculation of Histogram and Distribution plot.
Merge pull request #398 from jepebe/log_min_max_bug

Bug in min/max calculation of Histogram and Distribution plot.
ERT-437: Deprecated module rml_enkf and added bool flag use_prior to the rml_imodel module.
ERT-437: Fixed spelling error lamda -> lambda
ERT-437: Moving code around to increase readability and reduce duplication.
ERT-518: Added new analysis module function get_bool
ERT-437: Added set and get functions for many properties of rml module; and a better testing framework for these variables.
ERT-437: Pure whitespace changes.
ERT-437: Removed stale comments.
ERT-437: Many 'trivial' reformattings: name changes; introduced local scopes; moved code lines.