Start trying to build a deterministic ruleset merge
Never mind using the deterministic merge for now
Use custom python zip!
Add build exclusions
Fix build exclusions
Set zip info deterministically
Create zip info based on pre-generated zip

Before, when I tried constructing the zip metadata from scratch,
FF would give a corrupt file error when trying to load the xpi.
Compress during zip
Add better comments and clean up
Include zipfile.py from python 2.7 to be extra deterministic
Include python 2.6 zipfile instead of 2.7
Remove compression for now
Make sure files are deterministically ordered before zipping
No need to sort twice
Make simple files for testing compresion
Simplify even more
Change some hard-coded parameters
Check if we get reproducible sha1sums with a nonempty file
Check if we get reproducible sha1sums with TWO nonempty files!
Oops, forgot to add the second testfile