[IMP]hr_recruitment : Add a stat button for the created employee
[IMP] shell: load Odoo modules that have a "cli" directory
[IMP] config: allow defining addon_path in multiline

With a config like
[options]
addons_path: ~/foo,
	     ~/bar

'~/bar' was interprated as '\n    ~/bar' and is considered as a local directory
by os.path.abspath

Fixes #4403
[IMP] Create mail.Mention widget for @ mention functionality, Send mail without link, Prevent to add mention user as follwer
[IMP] mail: Improve @ algorithm and converter
[IMP] mail: Refactor some code
[IMP] Improve code
[IMP] Improve convert to link for prevent duplication
[IMP] Send mail to mention user but not add as follower
[IMP] Improve code of prevent follower and link in mail
[IMP] Close dropdown on ESC key press
[IMP] mail: Improve code
[IMP] mail: Improve code
[IMP] mail: Refactor code
[IMP] mail: Convert mention_ids from array to dict, refactore keydown event code, Fix duplication issue in set_text method, Base on duplication issue improve conversion
[FIX] mail: Focus event is not anymore Fix it
[IMP] mail: Improve code