[IMP] [MOV] account_analytic_analysis, hr_timesheet
- move the service product from product to hr_timesheet
- move default time unit for services from sale to account_analytic_analysis
to ease the configuration
[ADD] website: new table format snippet

(cherry-picked from 383ab454725d9bf8d01392a587c8a2c0c2116294)
(Closes #2429)
[FIX] Update README for master
[IMP] l10n_pl: some corrections in Polish CoA

PLN as default currency
Many improvements in taxes and fiscal positions
Fixes #825
[ADD] web_pdf_viewer: PDF in-browser preview

This module extends web client and reporting tool in order to allow a
preview of PDF files directly in the browser (if supported by the
browser). If you disable it, standard file download stays available.
[FIX] google_calendar: browse user as SUPERUSER_ID to be able to write/update google_calendar info on user
[IMP]website_forum: remove karma restriction, now users can post as a link or image