[IMP] quotation: added onboarding tips
[IMP] website: when no timezone in context, guess it from the
geoip data. This is used to find a timezone for public user.
[ADD] added rating, rating_project and rating_project_issue module

[IMP] Added option to install rating module under Project

[IMP] added template to display when customer rates the task/issue

[IMP] Improved template and code

[IMP] : rating , rating_project and rating_project_issue as per new api

[IMP]: rating template

[FIX] : test case failed

[IMP] : code