Fix bad logic in testing content version variable to prevent warning messages before content module is updated.

#300368 Add option on Display fields screen to omit fields or groups from the $content value, rework theme into content_exclude() which only returns TRUE or FALSE.

#300368 Add option on Display fields screen to omit fields or groups from the $content value passed to the node template.

Get rid of helper function content_is_updated(), we can do it better using the content version variable.

#318227 Clean up update abort logic to more clearly explain what still needs to be done, add a helper function to prevent dangerous database operations until database is updated.

#107407 by dopry, optimization patch, do nothing in hook_form_alter() and hook_nodeapi() if there are no fields.

#314986 by moshe weitzman, remove hook_devel_caches(), deprecated in favor of content_flush_caches().

Added the #delta value to the wrong place in the element, it was inaccessible to the formatter theme.

#310219 Let modules expose additional display modes iunder the 'Display fields' tab : hook_content_build_modes().

- #119102 Combo field prep, add hooks to the fieldgroup module so other modules can alter group info. Add group_type information to the Manage fields screen.

#119102 Combo field prep, add a helper function that can determine if a field is in use and the max delta value in use.

#309667 Add Panels integration in. This is still experimental since Panels for D6 is still experimental.

#234774 Nifty new UI to add fields and groups (requires a cache clear) + initial integration with advanced_help module.
Book writers now officially hate me.

Some files moved around, we thus loose CVS history on those :-(

#294797 followup - I forgot tu push '#weight' up a level, so field / group ordering on node view was broken

#301736 by nedjo - Nodereference: Multilingual support; if available, propose translations of referenced nodes when creating a new translation.