evolve: extract logic to new method _finalizerelocate
This patch introduces a new method _finalizerelocate to finalize current state
after merge states in relocate method.
This simplifies the code of the method relocate and allows us to modify it
later to support a continued keywork to implement evolve state.
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