Notifications overhaul

[Evanova Android]

User John Purcell would like more/better notifications and he is totally right

We need to review and refactor the notification system and come up with ideas on how to enable more character/corp based notifications to be displayed.

[Evanova Android]

In progress.

[Evanova Android]

https://bitbucket.org/evanova/evanova/issue/70/as-an-end-user-i-want-to-be-able-to-browse

should be part of this.

[Evanova Android]

Unless someone complains about the 1.2.5 changes, this issue shall be fixed.