Do case-insensitive comparison for entry names

Merged from 1.x branch

zorg/ChangeLog

+2009-03-28  Fatih Aşıcı  <fatih@pardus.org.tr>
+	* zorg/parser.py:
+		Do case-insensitive comparison for entry names
+
 2009-03-20  Fatih Aşıcı  <fatih@pardus.org.tr>
 	* zorg/config.py, zorg/consts.py, zorg/hwdata.py, zorg/probe.py:
 		- Refactor variable names to increase consistency.

zorg/zorg/parser.py

@@ -72,8 +72,9 @@ class XorgSection:
         self.options = {}
 
     def entry(self, key):
+        key = key.lower()
         for entry in self.entries:
-            if entry.key == key: # Comparisons must be case-insensitive; but ignore for now
+            if entry.key.lower() == key:
                 return entry
         return None