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 to Wikitude SDK 3.0 support and Phonegap 2.8
Adds sample implementation for loading POIs from a web service
Updates to latest Wikitude SDK, Phonegap Module & Image Recognition Sample (Android)
Updates app icons for Android's IR and POI Sample
Updates App icons and examples;

Signed-off-by: Andreas Schacherbauer <andreas.schacherbauer@wikitude.com>
Merge pull request #5 from AndreasHauserWikitude/WikitudeSDK30

Updates to Wikitude SDK 3.0 and PhoneGap 2.8.1