Identicons working in most lists, but not working for new items yet.

There are no settings yet.
Identicons now in new messages and in the From combobox.

[Broadcast Subscribers] gets the Bitmessage Icon for identification. This is hard-coded now, I would favour to put [Broadcast Subscribers] as a fixed item into the Address Book, so you can set an avatar as soon as i implement avatars.

Still no options yet: There will be an option to disable Identicons and Avatars separately. Another option will be for the suffix (to mimic adresses like "BM-...@bitmessage.ch" or to add a personal "salt" to prevent identicon attacks where someone creates an address with an identicon that looks alike the one of a known address). Also, identicon size (coupled with row height) should be available, but is of low priority.

Next step (after the settings) is to load specific avatars for each address.
quoted out the BSD licensed code (as i didn't get it to work properly yet)
now it should also work with the other identicon file
initial testing inv refactorization
initial testing inv refactorization
completed inv refactorization
Only UPDATE readStatus if it changed
use locks when accessing dictionary inventory
Merge pull request #490 from bitnukl/master

German translation update and main window resize
Merge pull request #491 from grant-olson/check_readstatus_before_update

Only UPDATE readStatus if it changed
delay addr messages random number of seconds
Merge pull request #494 from Atheros1/master

Smarter advertisement of object hashes and peers
More informative "message truncated" text that tells users what to do to
view the full message.
Fix German translation of max difficulty tab
add api method addChan

This solves issue #484
most initial work on v4 pubkeys completed
further v4 address work
Updated to work with QPixmap instead of PIL!

The original source is licensed under a BSD-License, so it should be fine to use.
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