prune: with active bookmark should stay active
hg prune with an active bookmark was deactivating the bookmark after the prune.
This patch makes sure that if a bookmark was active before a "prune" operation
(except prune -B) then the bookmark stays activate afterwards.
all: tutorials/tutorial.rst static/logo-evolve.ico
sphinx-build . ../html/
tutorials/tutorial.rst: tutorials/tutorial.t
python test2rst.py tutorials/
static/logo-evolve.ico: static/logo-evolve.svg
convert -resize 36x36 static/logo-evolve.svg static/logo-evolve.ico