Updates iOS Wikitude Plugin to improve the view controller handling;

Signed-off-by: Andreas Schacherbauer <andreas.schacherbauer@wikitude.com>
Fixes inject custom user location with setLocation ignored.
Android plugin is up to date.
Updates iOS & Android libraries to the latest versions;

Signed-off-by: Andreas Schacherbauer <andreas.schacherbauer@wikitude.com>
Merge pull request #29 from AndreasSchacherbauerWikitude/Integration_3-3

Updates iOS Plugin to better manage the view controller;