Miscellaneous quality-of-life improvements

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "src/glkote"]
+	path = src/glkote
+	url = https://github.com/erkyrath/glkote.git

build.py

@@ -11,30 +11,32 @@
 # jQuery, but we don't try to include it -- that makes it hard to integrate
 # Quixe with other web services. We assume that the host page already has
 # jQuery available (version 1.9 or later).
+from __future__ import absolute_import
+from __future__ import division
+from __future__ import print_function
 
-import sys
 import re
 import subprocess
+import sys
+
+regex_debug = re.compile(b';;;.+$', re.M)
 
-regex_debug = re.compile(';;;.+$', re.M)
 
 def compress_source(target, srcls):
-    print 'Writing', target
-    targetfl = open(target, 'w')
-    proc = subprocess.Popen(['python', 'tools/rjsmin.py'],
-                            stdin=subprocess.PIPE,
-                            stdout=targetfl)
-    for src in srcls:
-        fl = open(src)
-        dat = fl.read()
-        dat = regex_debug.sub('', dat)
-        fl.close()
-        proc.stdin.write(dat)
-    proc.stdin.close()
-    ret = proc.wait()
-    if (ret):
-        raise Exception('Process result code %d' % (ret,))
-    targetfl.close()
+    print('Writing', target)
+    with open(target, 'wb') as targetfl:
+        proc = subprocess.Popen([sys.executable, 'tools/rjsmin.py'],
+                                stdin=subprocess.PIPE,
+                                stdout=targetfl)
+        for src in srcls:
+            with open(src, 'rb') as fl:
+                dat = fl.read()
+            dat = regex_debug.sub(b'', dat)
+            proc.stdin.write(dat)
+        proc.stdin.close()
+        ret = proc.wait()
+        if (ret):
+            raise Exception('Process result code %d' % (ret,))
 
 compress_source(
     'lib/glkote.min.js', [
@@ -49,4 +51,3 @@ def compress_source(target, srcls):
         'src/quixe/gi_dispa.js',
         'src/quixe/gi_load.js',
         ])
-