Change python dependency to 2.6.

README

@@ -79,4 +79,4 @@ Start the program gtk-redshift instead of redshift, with the same
 arguments as you would pass to redshift. This will create an icon for
 Redshift in the system tray. The icon will allow you to toggle
 Redshift on and off. Thanks goes to the Tango Desktop Project for the
-icon. gtk-redshift requires at least Python 2.4 and PyGTK 2.12.
+icon. gtk-redshift requires at least Python 2.6 and PyGTK 2.12.

configure.ac

@@ -21,7 +21,7 @@ PKG_CHECK_MODULES([XCB_RANDR], [xcb-randr],
 	[have_xcb_randr=yes], [have_xcb_randr=no])
 
 # Check for Python
-AM_PATH_PYTHON([2.4], [have_python=yes], [have_python=no])
+AM_PATH_PYTHON([2.6], [have_python=yes], [have_python=no])
 
 # Check RANDR method
 AC_MSG_CHECKING([whether to enable RANDR method])
@@ -83,7 +83,7 @@ AS_IF([test "x$enable_gtk" != xno], [
 	], [
 		AC_MSG_RESULT([missing dependencies])
 		AS_IF([test "x$enable_gtk" = xyes], [
-			AC_MSG_ERROR([status icon script requires Python 2.4])
+			AC_MSG_ERROR([status icon script requires Python 2.6])
 		])
 		enable_gtk=no
 	])