[session cache] ensure we're not modifying cached rset/entities, they may be used elsewhere

[entity] put cached related entities as tuple to be sure no one is modifying

[rset] new copy() method

[migration] fix bug when propagating newly inserted relation type to children classes

merge

add some notes

fix pyro-host option type

fix bug when renaming a full text indexed attribute

fix remove/do not remove action sequence (using a temp attribute instead of setting a wrong value in the resurrected hidden input)

fix #471746

[migration] when adding a new attribute with a default value, set this value on existing entities (test and fix)

oops

unicode file name

by default skip new 'footer' category

[pyro] merge pyro-id / pyro-instance-id options, put all pyro options in the same section of the configuration file

[css] fix html_tree css, selected node use the selected class

[B] urlrewite: basic patch for i18n vtitle

backport stable branch

more test

ensure str is given as field's name

nicer deprecation messages

[inlined forms] nicer add_hiddens implementation relying on standard entity forms handling

[migration] take care to entity being added

call special sql files in correct order

cleanup

support for automatic transition

log when connecting to an external pyro source

[migration] fix addition of attribute to a parent class

[notification] add operation responsible for sending email notification when an entity is updated

backport stable branch