rewriteutil: allow rewriting merge commits (issue4561)
This patch simply allows rewriteutil.rewrite() to work with commits with
multiple parents (i.e. merges). That function is used in such commands as fold,
metaedit, touch, rewind.
The issue 4561 is marked as easy, the limitation is called unnecessary, no
tests fail after this change. What can go wrong.
Topic Extension================This packages also provides the ``topic`` experiment in an independentextension. It implements a new experimental concept to provide lightweightfeature branches for the mutable parts of the history. The experiments is stillat an early stage and have significant usability and performance issues whenenabled.How to Install==============The ``topic`` extension is included into the ``evolve` package, so the same instruction apply.Using Pip---------You can install the latest version using pip:: $ pip install --user hg-evolveThen just enable it in you hgrc:: $ hg config --edit # adds the two line below: [extensions] topic =From Source-----------To install a local version from source:: $ hg clone https://www.mercurial-scm.org/repo/evolve/ $ cd evolve $ make install-homeEnable------The topic extensions is included in the evolve package. See the install instruction for evolve.Then enable it in you configuration:: $ hg config --edit # adds the two line below: [extensions] topic =Documentation-------------* See 'hg help -e topic' for a generic help.* See 'hg help topics' and 'hg help stack' for help on specific commands.* See the 'tests/test-topic-tutorial.t' file for a quick tutorial.