[FIX] orm.copy_data: avoid reading useless and possibly expensive data when copying records
  
Rather than reading the data and discarding it,
it is much faster to not read it in the first place.
[FIX] orm.copy_data: avoid reading useless and possibly expensive data when copying records
  
Rather than reading the data and discarding it,
it is much faster to not read it in the first place.
[FIX] project.task: simplify delegated tasks remapping after task copy + avoid write() call if not necessary

This avoids recomputing function fields if not
necessary.
Launchpad automatic translations update.
Launchpad automatic translations update.
[FIX] project.task: simplify delegated tasks remapping after task copy + avoid write() call if not necessary

This avoids recomputing function fields if not
necessary.
[FIX] project.copy(): avoid preparing useless children data to copy, as they are discared in analytic.copy. Duplicating children is handled by  duplicate_template().
[FIX] project.copy(): avoid preparing useless children data to copy, as they are discared in analytic.copy. Duplicating children is handled by  duplicate_template().
[FIX] mail.thread: avoid tracking multiple temporary changes during copy
[FIX] mail.thread: avoid tracking multiple temporary changes during copy
Merge branch 'ocb-server/7.0' into demo-ocb/7.0
Merge branch 'ocb-addons/7.0' into demo-ocb/7.0