Support Windows PE Executable signature

[fpietrosanti]

This Ticket for the implementation of support in APAF, to document and facilitate the signing of resulting PE executable with a X509v3 digital certificate.

The Signing verification must work on:

• Windows XP SP3
• Windows Vista
• Windows 7
• Windows 8

cc @hellais @mmaker @mogui

[fpietrosanti]

It seems a non easy issue for py2exe:

• http://comments.gmane.org/gmane.comp.python.py2exe/4320
• http://stackoverflow.com/questions/7198431/outputed-py2exe-exe-wont-run-only-when-signed-importerror
• http://stackoverflow.com/questions/9586796/digitally-signing-a-cxfreeze-windows-executable

[fpietrosanti]

As noted by Rigel, this ticket may conflict with #21 and it may require some serious hacking to avoid the issues of timestamp variation applied by signing process.

[fpietrosanti]

Pyinstaller support Digital Signature of .exe generated http://www.pyinstaller.org/wiki/Features/WindowsCodeSigning