EnkfFs mounting error.
Only show Summary Key and not every Summary Observation Key
Merge pull request #391 from jepebe/master

Fixes related to EnkfFs and GenKw plot data and summary panel.
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.