[R schema hooks] use new accessors on CWRelation and CWAttribute entities

[R schema] dont give an iterator, it's a trap

[C schema seria] cleanup

[R repo, schema] use VIRTUAL_RTYPES const

[F server test] sort for test predictability

[R schemaobjs] property accessors for CWRelation/CWAttribute

F: start to handle binary debug log level on the server side

rewrite migrscheam

C remove no more used copy_schema

[D server test] remove deprecated test on application_hooks file, and associated data

backport stable branch

[F schema serial] #344876: missing some 'is'/'is_instance_of' relation for newly created instances

[vreg] consider __abstract__ in register_all

[xhtml form renderer] fix html structure, move header where we are sure to display it when necesary (_render_fields not displayed if main form has no visible fields

missing new renderer argument

merge

Add missing parameter to widget render call.

merge

merge

always explicitly close <base> tags because of an old IE6 bug

[hooksmanager] nicer unregister_hook implementation, allowing to give a Hook subclass as argument

[migration] reset do-not-insert-cwuri once it's properly in the schema

cleanup

[F delconf form] should give rset to select()

[form renderer] fix composite form renderer in case the main form has some visible fields

[form renderer] consider form.fieldsets_in_order if specified. Warn about unexistant or unused fieldsets.

add default values for fielsets_in_order, document base form attributes

[notification view] consider row/col

oops, this is a method

[repo session] ability to ask session to keep it's pool set even when only read queries are done, necessary at least during migration