Allows the accordion menus to be collapsed back

This helps people with OCD like me or just those who don't like scrolling along long lists.
Merge pull request #187 from marpontes/patch-1

Allows the accordion menus to be collapsed back
[CLEANUP]: Code Style review and license update
[CDE-396]: CDE endpoint refresh should return some confirmation
Merge pull request #188 from davidmsantos90/master

[CDE-396]: CDE endpoint refresh should return some confirmation
[CDE-402]: added i18n support when creating new dashboards
Merge pull request #189 from davidmsantos90/master

[CDE-402]: unable to apply a template in a CDE Dashboard using CTools v14.10.15
[Cleanup] Changing default target to something that actually runs...
[CDE-347]: updated samples that had outdated properties causing cde preview to not render properly
[CDE-347]: While editing a dashboard the 'Preview your dashboard' popup shows some charts incorrectly
Merge pull request #190 from davidmsantos90/master

[CDE-347]: While editing a dashboard the "Preview your dashboard" popup shows some charts incorrectly
[CDE-404]: Can't edit system resources for plugins with upper case letters
[CLEANUP]: review code style and license update
[CDE-404]: unit tests for Utils class
Merge pull request #191 from davidmsantos90/master

[CDE-404]: Can't edit system resources for plugins with upper case letters
[PPP-3356] - Disabled builds should not add a button to create new in Opened Toolbar