fetch2/svn.py: use log instead of info to retrieve revision

We have faced a corner case situation where the 'last changed
revision' returned from svn info is wrong. It happens when the last
revision is a directory move. e.g. if we assume that the svn
repository at revA has root/x/y/z/foo/bar and it is moved to
root/a/b/c/foo/bar in revB, then svn info 'last change revision' will
return revA. As such when using AUTOREV, we are going to attempt to
retrieve root/a/b/c/foo/bar (as per SRC_URI) but at revA when it did
not exist.

So this patch changes how we retrieve the latest revision and uses
'svn log --limit 1' which gives correct result in all tested cases.

Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
hob: populate error_msg when hob receives a CommandFailed event

When Hob receives a bb.command.CommandFailed event, it doesn't show any error,
because the error_msg is empty. If so, it is hard to detect the issue, because
Hob continues to run till it blocks because of an information gap.

[YOCTO #5097]
Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
fetch/hg: Improve user/password handling

Trying to use a server with username and password authentication
within the URL of the SRC_URI variable doesn't appear to work.

This patch adds the missing parts to the hg fetcher to make this
work properly.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
hob: do not display the "Package list may be incomplete!" dialog

This dialog is not needed. Instead "Edit packages" button should
redirect to Packages list.

[YOCTO #5257]
Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>