graphmod: fix seen state handling for > 2 parents (issue5174) When there are more than 2 parents for a given node (in a sparse graph), extra dummy nodes are inserted to transition the lines more gradually. However, since the seen state was not updated when yielding the extra nodes, the wrong graph styles were being applied to the nodes.

httpclient: reverse accidental damage from 86db5cb55d46

tests: tolerate http2 You can run tests like this: run-tests.py -l --extra-config-opt ui.usehttp2=true And ideally, no tests should fail...

make: add rule for building an ubuntu ppa

builddeb: add flag for a source-only deb This is required for building a ppa for ubuntu which following patches will use.

builddeb: create source archive for ubuntu

builddeb: ignore vcs and build results This one is a no-brainer. Previously, if you tried to build a deb on ubuntu, it would try to diff files in the .hg store. These flags prevent that.

builddeb: copy over .gz and .dsc files We were forgetting to copy over the signature (if it exists) and the zipped diff, so let's do that.

builddeb: ignore errors about find not finding files The debuild command may output less files than we explicitly list so let's not error out if none exist.

builddeb: use the os codename instead of 'unstable' This fixes a lintian error (and indeed, launchpad rejects it) by using the distribution's codename (e.g. xenial, trusty, etc).