This new UI bundle contains the org.eclipse.jgit.awtui package,
which was moved out of the org.eclipse.jgit bundle.

org.eclipse.jgit.pgm depends on org.eclipse.jgit.ui, so we need
to update the classpath and make_jgit.sh to include it.

This move takes the awtui classes out of the Maven build, which
means we are no longer able to distribute these classes to our
downstream Maven customers.  The entire Maven package structure
needs to be overhauled so that Eclipse bundle matches 1:1 with the
Maven artifact.

Bug: https://bugs.eclipse.org/291124


Change-Id: Ibf1a9968387e3d11fdce54592f710ec4cc7f1ddb
Signed-off-by: Mykola Nikishov <mn@mn.com.ua>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Our project plan calls for us to build 0.6 as the next version,
but I forgot to also update the MANIFEST.MF for the plugin when
I edited the Maven pom.

Change-Id: Ic1a6c64374a4384a65a3dd0306adddfc73adac52
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

- We shouldn't be re-exporting bundles, JSch in this case.
  Instead used a Import-Package clause.

- Some packages weren't exported.  In Eclipse we have a policy to
  export all the packages in a bundle

- Exporting version numbers on the export packages.

Bug: 291108
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Per CQ 3448 this is the initial contribution of the JGit project
to eclipse.org.  It is derived from the historical JGit repository
at commit 3a2dd9921c8a08740a9e02c421469e5b1a9e47cb.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>