override clear_all_caches to clear cwetype_workflow cache

[wf] new workflow_history property, nicer the reverse_wf_info_for...

[wf] refactor current_workflow by extracting cwetype_workflow method

[wf] allow ascii state/transition names

[wf] return None, not empty list

[schema] default_workflow_of more naturally expressed as default_workflow

[entity] generic clear_all_caches methods, to use in test

[entity] use role instead of x

[session] add delete_relation in the same way as add_relation, document them

make state/transition name unique within a workflow

merge

[pdf] (ugly) pdf icon, component

follow name change, fix pdf template registration, add debian package tracking

[views,pdf] minimal support for xhtml->pdf conversion

[web] oops

[uilib] move unused render_HTML_tree function to lgc

[utils] remove seemingly completely unused class

backport stable branch

some test fixes, more in the 3.5 branch

fix edited_attributes handling when adding entity

oops, not self but cls here

use a property for schema, avoid bad schema reference

when adding/removing cubes, we should add/remove entity types in correct order if one inherits from another

[debian] fix (hopefully) packaging problems with hardy

cleanup

fix test schema and update some tests to work again with wf changes

remove debug print

test and fix rset returned by SET query

start a new workflow engine

new create_entity method, temporarily on base request (later on cw entity manager or as factory method)