[FIX] remove raised error if obsolete fields are in old views
[ADD] debug log
[ADD] analysis work file for module report, new module nothing to do
[IMP] Improve debug log.
[REF] remove useless pass command;
Merge pull request #5 from bguillot/report

[ADD] analysis work file for module report, new module nothing to do
Merge pull request #3 from legalsylvain/fix-bad-error-view

[FIX] remove raised error if obsolete fields are in old views
Merge branch 'master' of https://github.com/OpenUpgrade/OpenUpgrade into email_template