add titles to article nav icons
add missing page tracking
Merge branch 'dev' into CON-2235
ArticleNavigation.i18n: use short arrays notations
allow some logged in users to create user accounts

The context of this change:

Sometimes logged in users require the ability to create new user
accounts. Thereis a user right 'createaccount' that has to be respected
here. Wikia users from the 'staff' group and Wikia One users from the
'createaccount' group have that right.
fix a typo in the right name
CON-1160: NavigationModel - vary memcache key by user lang and content lang
composer.json: require cssjanus/cssjanus
CSSJanus: use the file "installed" via composer
SassService: increase cache buster as we updated CSSJanus (CON-2020)
remove typo
remove unnecessary condition
Test commit for webhooks
Revert test commit for webhooks
fix comments styling
add comments
remove avatar margins
Merge pull request #5643 from Wikia/dev-ce-1173-cannot-create-accounts-on-wikia-one

allow some logged in users to create new user accounts
VenusController: $wgCityId was missing
Merge branch 'dev' into CON-2304