Better legend title for external wms (WMSbrowser)
Add legend for external WMS (WMS Browser)
Update submodules dependencies
Merge pull request #539 from camptocamp/update-dependencies

Update submodules dependencies
Merge pull request #530 from camptocamp/external-wms-legend

External wms legend (WMS Browser)
Merge branch 'master' of github.com:camptocamp/cgxp into fix_examples_dygraph