[eclipse-pmc] PDE Build/UI Change for 3.4.1RC3

["Chris Aniszczyk" <caniszczyk@xxxxxxxxx>]

(pde ui) product export from the ui does not generate bundles.info
https://bugs.eclipse.org/bugs/show_bug.cgi?id=240053

(pde build) product export from the ui does not generate bundles.info
https://bugs.eclipse.org/bugs/show_bug.cgi?id=246391

DESCRIPTION:
For a long time, PDE UI used its own code to export products. When p2 was added,
there was some differences between the way UI and Build generated certain artifacts
on export (mainly the config.ini). The lack of cohesion caused an issue in PDE UI to not
support certain product configurations that use p2. To solve the issues on export when you're
using the UI,we will delegate to PDE Build to generate this artifact.


FIX:
-The fix is to delegate to PDE Build when building products.

RISKS:
-This is a low risk change.

PERFORMANCE IMPACT:
-none

--
Cheers,

~ Chris Aniszczyk