Removed an unused import.
Switched hash functions from PyCrypto to hashlib.

There's a few advantages to this:

1) It's probably fast, OpenSSL, which typically backs hashlib, receives far
   more attention for optimizaitons than PyCrypto.
2) It's the first step to supporting PyPy, where PyCrypto doesn't run.
Remove unused function
Link back to WWW in docs sidebar
Merge branch '1.13'
Merge branch '1.10' into 1.11
Merge branch '1.11' into 1.12
Merge branch '1.12' into 1.13
Minor site cleanup
Merge branch '1.13'
Merge branch '1.10' into 1.11
Merge branch '1.11' into 1.12
Merge branch '1.12' into 1.13
Fix broken tag-tree links in changelog
This setting no longer needed & causes warnings if left in
Merge branch '1.10' into 1.11
Merge branch '1.11' into 1.12
Merge branch '1.12' into 1.13
Merge branch '1.13'
Formatting