add styling to browse tile sets
add search logic to browse tile sets + small refactoring
small change to make search working
Merge branch 'MOB-1771-php-changes' into MOB-1771
in progress
Refactoring
Merge branches 'MOB-1392-intmap-extension' and 'MOB-1806-pin-type-parent' of https://github.com/Wikia/app into MOB-1806-pin-type-parent

Conflicts:
	extensions/wikia/WikiaInteractiveMaps/WikiaInteractiveMapsUploadImageFromFile.class.php
Quick fix
Merge pull request #3935 from Wikia/MOB-1806-pin-type-parent

MOB-1806 Pin type parent
final touches
CON-1295 | WikiaHomePage hub images spacing changes
Merge branch 'MOB-1392-intmap-extension' into MOB-1771

Conflicts:
	extensions/wikia/WikiaInteractiveMaps/WikiaInteractiveMaps.i18n.php
	extensions/wikia/WikiaInteractiveMaps/controllers/WikiaInteractiveMapsController.class.php
	extensions/wikia/WikiaInteractiveMaps/js/intMapCreateMapTileSet.js
fix tile get tile set method after merge
CR changes: small changes in messages documentation
CR change: one line less ;)
CR change: indentation
Merge pull request #3936 from Wikia/MOB-1684-hiddenStructure

hide hiddenStructure
CR change: added missing new line
CR change: fix whitespaces
PLAT-75 further simplify sendWelcomeMessage

This is a further reduction in the external dependencies in
sendWelcomeMessage with additional unit tests.