Views content connector; based on #791960.

longer defaults to FALSE, as this caused widespread unexpected behavior
in modules using ctools plugins.

terms from a node context.

selectors by switching in str_replace() for preg_replace().

part of $form_state.

content_type plugin.

show/hide their view's fields.

introduce static var resets when locks are cleared.

to avoid warnings on PHP5.3

form_comment_form_alter() implementation.

#531366 by mikeker: Move token substitutions to prior to filtering in custom content type. This could have some effects on existing installs.

#722246: Search tabs not quite right, particularly with retaining keywords across tabs. This mostly fixes.

#745468 by alevine and Scott Reynolds: Make ajax better able to know what .js/.css was already on the page.

#723296 by andrewlevine: Generalize more of CTools helpers so they can be used for non-CTools files.