try to append to a *list* of protocols in LLRPClientFactory's parent

if that fails, fall back to setting parent.protocol
port must be an int (thanks JY for patch)
Added additional error codes to Error_Name2Type in llrp_proto.py
Merge branch 'master' of https://github.com/ransford/sllurp
Merge pull request #3 from daemacles/master

Added additional error codes
record peer name (hostname of reader) in LLRPMessage
Better project setup.

We want to have the license be called license.
Switched from old distutils to much better setuptools.
Made 'inventory' public in module so that we can have it as a script on the command line (look console_scripts in setup.py).
Much more comprehensive .gitignore to ignore build packages and distributions etc.
Powershell script to export rfid reader configuration on windows.
Remove my reader ip.
Remove useless newline.
Read version from file. Refactored description reading.
Merge pull request #4 from JonasGroeger/new-project-setup

Better project setup.
Merge pull request #5 from JonasGroeger/powershell-export-reader-configuration

Powershell script to export rfid reader configuration on windows.
README tweak
Merge branch 'master' into messages