Collect useful commits from other forks and package it in a pull request.

[schmidp]

Hi,

I went through a few forks that have reasonable commits which are useful for everyone and merged them in my fork. This pull request should merge changes of the following repos:

https://github.com/baldmountain/Cocoa-Touch-Barcodes/ by @baldmountain https://github.com/baz/Cocoa-Touch-Barcodes/ by @baz https://github.com/netshade/Cocoa-Touch-Barcodes/ https://github.com/openresearch/Cocoa-Touch-Barcodes/

Tell me what you think about it.

[netshade]

Lot of good changes in here, I'll check out the branch this week and try it out - great idea to pull all these together, thanks.