Updated project settings for Xcode 5

Signed-off-by: Jai Govindani <jai@monstermedia.co.th>
Set skip install = YES

Signed-off-by: Jai Govindani <jai@monstermedia.co.th>
Fix valid build architectures

Signed-off-by: Jai Govindani <jai@zodio.com>
Merge branch 'refs/heads/scalable-image'

Signed-off-by: Jai Govindani <jai@zodio.com>

Conflicts:
	src/QREncoder.xcodeproj/project.pbxproj