benchmark-report: Allow non-ASCII characters for plot labels.
benchmark-report: Add matplotlib configuration file example to override the font being used.

This is required for report including Japanese characters as Bitstream
font (the default) does not handle such characters.
benchmark-report: Fix sorting by number of users.

Eg, instead of 1, 6 and 12, it was being sorted as 1, 12 and 6 users.
Domain tree helps manage content.
erp5_accounting: Add more columns to listbox in Accounting Transaction Module

Added source_trade, source and specialise to more columns and set as searchable columns
benchmarks: Even if it's unusual, some use cases may take less than 1 seconds to run.
Any blog "front" page should shows only a short blog description not entire blog post as this makes it impossible to read / follow.
use ODS instead of SXC for the temporary object in importing a spreadsheet.

export to SXC is no longer supported in LibreOffice 4.2.4.
credentials: only take into account persons with reference when looking up login from email

also simplify some error messages
relation field: fix error when displayed along with a matrixbox
Add support for default value in category & value accessors

In Base._getAcquiredCategoryMembershipItemList, replace broken code by an exception.