Windows: PATH should not be manipulated by the installer

[Václav Šmilauer]

Manipulating the PATH in the installer brings various issues, most importantly possibly interfering with the DLL search orter for other installed program. Small .bat files should be used instead, as described in http://code.google.com/p/tryton/wiki/AddingPythonToWindowsPath .

According a to a report, "Woo writes the installation directory to the system PATH in the environment variables (for example: C:\Program Files (x86)\Woo). However it clears out everything else that was previously listed in PATH during this process." This issue (although not yet confirmed independently) would be also resolved.

[Václav Šmilauer (eudoxos)]

Related question: http://stackoverflow.com/questions/21476317/where-to-put-batch-file-in-windows-so-that-it-is-always-accessible-without-chan

[Václav Šmilauer (eudoxos)]

Closing, moving to github.