Merge pull request #36 from csanyiarpad/feature/519-clean-up-wt-page

feature/519: celan up WT page
Add gulpfile for checking eslint
Fix eslint errors
Fix Documentation dropdown z-index bug
Adds private sharing.
Merge branch '7.x-1.x' of github.com:Pronovix/WalkHub-module into 7.x-1.x
Fixes code review issues.
Merge pull request #37 from tamasd/7.x-1.x

Adds private sharing.
Handle the published settings properly on the walkthrough node creation.
Merge pull request #38 from tamasd/7.x-1.x

Handle the published settings properly on the walkthrough node creation.
fix/459: selector not found error message style

This commits modifies some css of related to the error message in the header,
and modifies the js, which is inserting the error message in the titlebar of the popup,
to use a slightly different markup for the message.
This commit is related to the commit of the main repository with the same title on branch "fix/459..."
Merge pull request #39 from csanyiarpad/fix/459-selector-not-found-formatting

fix/459: selector not found error message style
Fixes access issue with empty screenings.
Merge branch '7.x-1.x' of github.com:Pronovix/WalkHub-module into 7.x-1.x
Merge pull request #41 from tamasd/7.x-1.x

Fixes access issue with empty screenings.
Merge pull request #40 from Coornail/fix/travis-eslint

Fix/travis eslint
Merge pull request #42 from Coornail/fix/documentation-dropdown-z-index

Fix Documentation dropdown z-index bug
Add support for screening unpublished nodes
Merge branch '7.x-1.x' into feature/screening-unpublished-nodes
Send hide edit parameter in the global walkthrough state