Cover the distribution phase of installation: build an installer wizard on Windows (through !InnoSetup/NSIS), a DEB/RPM for Linux and a DMG for Mac.

Left from previous milestone

• Fix windows service (#539, #559).
• Customizable (package-dependent) spec file
• Enable/disable importing modules from filesystem
• PyInstaller home should be "read only", this is: no files are written there
• binchache is going to $HOME/.... (already implemented, but need to be changed)

'''Only ideas, to be discusses, not decided yet'''

• find import in extension modules (this would allow some hooks to be removed) #438
• infos about how to package as an rpm (ReadMe-Pacakgingg.txt)