[FIX] fixed notification counter

Fixed notification wrong count based on unread messages.
[FIX] fixed notification counter

Fixed notification counter for unread messages.
Merge branch 'messaging-v2'
Merge pull request #18 from Odoo-mobile/messaging-v2

Messaging v2.0
[IMP] updated notes package link
[IMP] manage default instance
Merge pull request #35 from Odoo-mobile/framework-default-instance-dso
[IMP] removed contact service
[IMP] improved notification, odoo user login
[IMP] Mail widget preview image
Merge pull request #19 from Odoo-mobile/messaging-v2-widget-nip

[IMP] Mail widget preview image
[IMP] check for exists account, forgot password and create account support
Merge branch 'master' of https://github.com/Odoo-mobile/framework
[ADD] static string
[IMP] static string
Merge pull request #20 from Odoo-mobile/messaging-static-string-nip

[ADD] static string
[IMP] code clean up
[FIX] messaging-notification-fix no of records
Merge pull request #22 from Odoo-mobile/messaging-notification-fix-nip

[FIX] Messaging-notification
[ADD] added playstore link