issues pynzb library + useful extentions

[pyrescene]

I've used this library to process thousands of NZB files.
These are additions and fixes I hacked together while using pynzb:
http://pastebin.com/JRC6GD8g
You have permission to use any of this code to improve pynzb.

In short:

• Not all NZBs are valid XML: a function that tries to fix it and parse again e.g. for some NZBs created by newsmangler
• function to grab the file name from the subject + effort to do it for non-standard subject lines too
• the date of a file wasn't time sensitive
• functions to build new NZB files (I used it to create NZBs with certain files)

[rickatnight11]

Bummer, I just spent a good chunk of last night implementing NZB write functionality. Welcome to use my code as well:

base.py - http://pastebin.com/30uJ9kQA
lxml_nzb.py - http://pastebin.com/ZCi9U5uT
etree_nzb.py - http://pastebin.com/aSb4jnaw