evolve: load evolvestate before passing to continueevolve()
This patch moves some code from continueevolve() to evolve() function so that we
have a loaded evolvestate present in the evolve() function for post processing.
# utility to setup pythonpath to point into the tested repository
export SRCDIR=`dirname $TESTDIR`
if [ -n "$PYTHONPATH" ]; then
export HGTEST_ORIG_PYTHONPATH=$PYTHONPATH
export PYTHONPATH=$SRCDIR:$PYTHONPATH
else
export PYTHONPATH=$SRCDIR
fi