[ms] fix two planner bugs: one occuring query such as X created_by U where X in a external source and U may come from an ldap source. The other being that when we've to merge input maps, we were modifying the same tree/solutions while a copy were needed. Also, ensure we add type restrictions, necessary for pyro source

include *.py
include */*.py
recursive-include data external_resources *.gif *.png *.css *.ico *.js
recursive-include i18n *.pot *.po
recursive-include wdoc *