evolve: make uncommit respect allowunsable
Before this patch, the uncommit command was performing the same way regardless
of the value of experimental.evolution.
With this patch if the configuration does not allow unstability, uncommit won't
create instability.
recursive-include docs/figures *.svg
include docs/figures/hgview-example.png
include docs/*.rst
include docs/*.py
include docs/tutorials/*.t
include docs/makefile
include docs/static/*.svg
include hgext/__init__.py
include hgext/evolve.py
include hgext/pushexperiment.py
include hgext/simple4server.py
include setup.py
include README
include COPYING
include tests/*.t
include tests/*.py
include tests/_exc-util.sh
include tests/dummyssh
exclude tests/test-oldconvert.t
exclude tests/test-qsync.t
exclude tests/test-drop.t