Add sourceEncoding UTF-8 to parent pom and go back to Tycho 0.20

Change-Id: I97e37848c432c2197d5faf3f077aed9dd08b6c51
Signed-off-by: Markus Knauer <mknauer@eclipsesource.com>
Bug 446566 - Activate UI delay monitoring for EPP Committers

Change-Id: I6e43b13bd20110cb04bd87573d72d47bcd9542ed
Signed-off-by: Sergey Prigogin <eclipse.sprigogin@gmail.com>