Added support for enkf/StateMap
Some code cleanup.
ERT-403 - Partial multiple case plot widget implemented.
Added readonly property to state_map
Added functions in enkf_main and enkf_fs to create readonly state_map - without the full filesystem mount.
Merge remote-tracking branch 'joaho/state-map-readonly' into multiple_plot_case
Added function state_map_is_readonly() to query readonly status.
Merge remote-tracking branch 'joaho/state-map-readonly' into multiple_plot_case
Added more support for read only enkf_fs objects.
ERT-403 - Added a panel for debugging case data.
ERT-403 - Added caching to alternative files systems and added read only state maps.
ERT-403 - Added support for multi case plotting.
Merge remote-tracking branch 'upstream/master' into multiple_plot_case
Bug in initialisation of iterated smoother
Merge pull request #286 from joakim-hove/iterated-smoother-bug-411

Bug in initialisation of iterated smoother
Merge pull request #285 from jepebe/multiple_plot_case

Support for multiple plot cases
Removed unstable, time dependent test
Merge pull request #287 from flikka/remove_unstable_job_test

Removed unstable, time dependent test
ERT-401 - Support for resizing of plots.
Added missing icons.