configitems: move the default values to the registrar decorator
The exthelper refactoring of configitems stopped registering dynamicdefault for
everything, which in turn causes a lot of warnings about mismatched defaults.
There are a few stragglers- I didn't fix topic-mode because I wasn't sure what
the default should be, and the alias for odiff was explicitly given a default
for compatibility.
. $TESTDIR/testlib/common.sh
cat >> $HGRCPATH <<EOF
[ui]
interactive = true
[phases]
publish=False
[extensions]
evolve =
[experimental]
evolution.effect-flags = yes
EOF
sync() {
hg pull -R $TESTTMP/server . -q
}