ADEN-704 ivw tracking upgrade (1:1 from docs)
ADEN-704 ivw tracking upgrade (1:1 from docs)
ADEN-704 ivw tracking upgrade (tests)
ADEN-704 ivw tracking upgrade (document.write out)
Merge remote-tracking branch 'origin/aden-704-ivw-tracking-upgrade' into dev

Conflicts:
	extensions/wikia/AnalyticsEngine/AnalyticsProviderIVW2.php
DAR-2572 | Replace modal used in Share button
After CR changes
DAR-2572 | Jslint and changes after CR v2
Merge pull request #2152 from Wikia/aden-704-ivw-tracking-upgrade

Aden 704 ivw tracking upgrade
PLA-950 added Szumo's fix
PLA-950 code elegance
Merge pull request #2209 from Wikia/PLA-950-b

PLA-950: merged again
DAR-3098 | BUG: messages and buttons swaped
Merge pull request #2197 from Wikia/DAR-2572

DAR-2572 | Replace modal used in Share button
Merge remote-tracking branch 'origin/dev' into DAR-2553