- Moved the web *.po files to /i18n to be consistent
  with the addons convention. Using /po was considered
  for a while because it played better with LP's auto-
  detection of PO Templates, but that is not necessary
  anymore, we now have full control on LP templates.

- In order to support addons that contain translations
  for both the web addon and the regular addon part,
  both kinds of translations are now merged in a single
  addon/i18n/addon.pot file. Terms that are used by
  the web part are now marked with a PO annotation:
     #. openerp-web
  so the web client can recognize them and only load
  the relevant translations in the browser memory.
  This is important because a complete PO file can
  be rather large, e.g. account/i18n/de.po = 400KB.

- The web translation export scripts were updated to
  behave properly for addons that have a non-web
  part, and will merge the web translation in the
  original POT file, annotating the web translations
  as needed. These scripts are Unix-only and meant
  to be used by OpenERP packagers when needed.

- The GetText spec says that PO auto-comments indicating
  the source location have this form:
   #: /path/to/file:lineno
  However OpenERP's POT export system defaults to a modified
  version of this format with an extra 'type' field:
   #: type:/path/to/file:lineno
  The babel extractors we use have the GetText format 
  hardcoded so a small patch is needed on the server
  to make it more lenient and accept the standard
  source annotation, defaulting to 'code' type.
  This does not matter for openerp-web, but makes sure
  the server will not fail to load the new PO files 
  that contain openerp-web translations with standard
  annotations.
  The patch for making the server more lenient was
  checked in trunk at revision 4002 
  rev-id odo@openerp.com-20120202143210-05p1w24t6u77cyv8

- The existing translation sync and export wizards for
  regular addons have not been updated to consider
  web addons, so for the time being we will have
  to export regular addons terms first, and run the
  web export script (gen_translations.sh) on the
  addons directory afterwards. This could be improved
  later.

As soon as this change is merged we will have to
perform a full update of addons translation
templates in order to include the web terms as well.

bzr revid: odo@openerp.com-20120202145603-ffo0il0qnfp3r6gt