apigen: Fix function detection in Python 3
Expose seed parameter, fix doc string
Set seed for test cases
Merge pull request #1307 from ahojnnes/unwrap-rand

Remove random initialization from unwrap
Merge pull request #1306 from stefanv/py3_apigen_fix

apigen: Fix function detection in Python 3
DOC remplace iff by if and only if
Merge pull request #1315 from sciunto/ffi

DOC remplace iff by if and only if