[backport] fix #1257
Fixing scroll
[Backport] Fix bug #1112: Sometime the nav projects menu doesn't show the project list
[backport] Fixing the bad debounces
Merge branch 'master' into stable
[backport] Fix Bug #1281: Strange behavior on create/destroy/create sprint process
[backport] Removed hyphens from files and classes
[backport] Fixed notification message on top
[backport] Fixed beta text in navigation logo
[backport] Escape project.name in invitation page
[backport] Add event tracking code on memberships page.
[backport] Fix missing injection of analytics service on related tasks directive.
[backport] Fixes in kanban table scss class name
[backport] Fix wrong title tracking on analytics using generic title.
[backport] Fix issues creation tracking.
[backport] Minor improvement for make analyics more safe.
[backport] Fix bug #1367: Fix filter action and new project button in the project nav menu
Fix example config file: add enableFeedback option
On history, use de default avatar for not-existing-users and using the name from the history
Add extra humans titles to humans.txt