backport stable

[c-c create] unification of c-c create and its subcommands handling * create/db-create/db-init uniformly accept --automatic and --config-level options, properly passed along the way * --automatic option fixed so it doesn't need yes or no argument * closes ##1537265 on the way

[rql rewriter] to properly handle 'relation' rql expressions, rql rewriter must support multiple variables (eg S and O) at once to be given as varmap

[rql rewriter] drop unused argument

[rql rewriter] don't add unnecessary (potentially buggy) exists

update lgc dependency also in pkginfo

updated lgc dependency

allow CW to act as a Pyro Server without registering the server to a Pyro Nameserver (closes #1528533) This is achieved by configuring the pyro-ns-host to __NO_PYRONS__ (which is an illegal value for a host name) The Pyro URI for the server can be retrieved by reading the pyro_uri attribute of the Repository

[date picker] apply Carlos patch fixing spanish date picker translation file. Closes #1558893

cleanup

[c-c create] we should also skip option with no type, else we may generate title for section without any option to fill

[config] do not set base-url during instance creation, we don't want generated value to ends up in the configuration file

[config] generalise config.creating, allowing to drop set_language class attribute

[web test] fix broken url in reledit. tests BROKEN ANYWAY (crash due to missing attribute)

merge