*really* upgraded python requirement to 2.7 (2.4 is missing ZipFile.extractall)

hm.py

@@ -43,8 +43,9 @@ from build import toolchain
 from getopt import gnu_getopt
 
 # minimum required version
+# 2.7 needed for ZipFile.extractall
 requiredMajor = 2
-requiredMinor = 3
+requiredMinor = 7
 
 # options used by all commands
 globalOptions = 'v'

tools/build/toolchain.py

@@ -19,7 +19,7 @@
 import sys, os, ConfigParser, shutil, re, ftputil, zipfile
 from generators import Generator, EclipseGenerator, MakefilesGenerator
 
-if sys.version_info >= (2, 7):
+if sys.version_info >= (2, 4):
 	import subprocess
 
 class InternalCommands: