yaml: use selected user and not admin for onchange

Fixes: #1885
yaml: use selected user and not admin for defaults
[FIX] Fixes #4026 on discount barcode in POS
[FIX] account_check_writing: correct domains on allow_check

Fixes #4269
[FIX] project: don't use planned_hours in project gantt

The gantt view does not have enough data to properly display a project's length
based on only the planned hours.
It also makes it impossible to change the project's length using drag & drop.
It's safer to simply display the start and end dates recorded in the project
Fixes #2632
[REF] Packaging: Backport of v8 packaging

[REF] Packaging: backport of a7ab5a4109ec99d77f61a6d4c8bc7696149ea09c
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[FIX] Packaging: backport of 134716308266ff
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[FIX] Package: partial apply of d9e72a3716488ce8
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[REF] Package: backport of 9f13722f7837a80e423ca6e7a7337d66f900e564
[FIX] sql_db: close db connexions before removing them.

Closes #831 aka lp 1322191
[FIX] event onchange event type

Courtesy of Alejandro Santana

Closes: #1046, #1047
Merge pull request #1886 from lepistone/7.0-fix-yaml-onchange-user

use selected user and not admin to run yaml tests
[FIX] report barcode cast humanreadable
[FIX] web footer link from OpenERP to Odoo
[FIX] doc: clean exercise-dashboard xml to v8

Courtesy of Moises Lopez

Closes: #4336
[FIX] doc: views calendar view attribute name

Courtesy of: Michiels Denis

Closes: #4249
[FIX] l10n_ro: changed module author as requested in issue 621105
[FIX] web: base.css: fallback for browsers without calc support

see https://developer.mozilla.org/en-US/docs/Web/CSS/calc
[FIX] base: translate place holders in partner view

Placeholders for City, ZIP and State were not translated
Fixes #4340 (and one of #1755), opw 616589
[FIX] survey: use ustr instead of str for question.question
[FIX] point_of_sale: pos details report company taxes and payments

If the sales details only fetches the pos sales details of his own company, it should be the case for the pos payments and taxes as well.
[IMP] resource: remove the need to install matplotlib

Seriously? To flatten a list, a math dependency of 80MB?
Fixes #4383
[FIX] l10n_ro: changed module author as requested in issue 621105