Updates iOS PhoneGap package to Wikitude SDK 3.0 and PhoneGap 2.8;

Signed-off-by: AndreasSchacherbauer <a.schacherbauer@me.com>
Updates SDK tracking and adds placeholder .txt files in Framework folder;

Signed-off-by: Andreas Schacherbauer <andreas.schacherbauer@wikitude.com>
Updates App icons and examples;

Signed-off-by: Andreas Schacherbauer <andreas.schacherbauer@wikitude.com>
Merge pull request #1 from AndreasSchacherbauerWikitude/master

Updates iOS PhoneGap plugin to version 2.8 and Wikitude SDK 3.0;