Bug 500552 - Automatic download of src/javadoc run after project config

Run automatic download of sources/javadocs after project configuration
rather than in parallel with "regular" dependency resolution. So
downloading src/javadoc doesn't slow down download of regular jars.
Make source/javadoc downloaded by default as they have now no time cost
for user to get regular classpath resolution.
+ Added better progress reporting in the downloadSourcesJob.

Change-Id: I18bf42d678cea07c8242280889358f96776f64e6
Signed-off-by: Mickael Istria <mistria@redhat.com>
4 files changed