TISTUD-6548 Studio installer version on Mac displays 3.0 despite being 3.3.0
  - Inject versions and year into Info.plist as part of our build rather than relying on updating it ourselves
  - Fix the update site we point at to Kelper from Indigo (since we now build on 4.3 as our base).
Merge pull request #4 from sgtcoolguy/TISTUD-6548

TISTUD-6548 Studio installer version on Mac displays 3.0 despite being 3.3.0