[doc/book] fix a bit the request chapter, add autodoc

[migration] fix error when synchronizing everything and some schema still in the db schema but not anymore in the fs schema

don't fail on cube's pkginfo without __use__

[hook] backport bad .events fix from default

[doc/book] complete the facet section

[doc/book] change font to improve lisibility (in particular cl -> d)

[doc/book] rework the templates chapter (wipe out horrible example, talk more about structure)

[config] better *-session-time documentation and usage in session handler

[facet] fix #873742: erroenously use self.cw_rset instead of context rset

[vreg] fix traced_selection

added note about interesting page about SQL implementation differences

use MB for Megabytes, instead of french Mo

merge

[doc] save idiotic changes to some drawing

[devtools/validators] add an Xml validator able to degrade to Html validation because of views perusing demote_to_html

[vreg] fix bug introduced in 5273:c4caef6f09c9 : we should not force_reload in vreg reset done because of a set_schema

backport stable

[vreg] refactor the [re]loading process so things get clearer and fix spurious errors on edge cases

cleanup

[dbapi] fix user handling on dbapi request. Avoid getting None as _user and remove the need for a property.

[etwist] allow to specify max size for POST request in the configuration. We should deal with this nicely on the js form validation code.

[doc/book] missing .svg files, refresh .pngs, fixlets

merge

[devtools] do not forbid use of postgres as a source for tests (but it still needs proper dump/restore support)

[doc/book] regroup views chapters under common umbrella (in the development part) & some fixes

section moved to the book

fix the dosctring

[doc/book] merge controller/editcontroller