Moved compat.py to new dir utils/ and also added timer class

utils/timer.py

@@ -0,0 +1,30 @@
+import time
+
+class Timer(object):
+    """
+    Generic timing class for simple profiling.
+
+    Usage:
+
+    with Timer(verbose=True) as t:
+        # code to be timed
+        time.sleep(5)
+
+    Output:
+    elapsed time: 5000.000 ms
+
+    Can also access time with t.secs
+    """
+    def __init__(self, verbose=False):
+        self.verbose = verbose
+
+    def __enter__(self):
+        self.start = time.time()
+        return self
+
+    def __exit__(self, *args):
+        self.end = time.time()
+        self.secs = self.end - self.start
+        self.msecs = self.secs * 1000  # millisecs
+        if self.verbose:
+            print 'elapsed time: %f ms' % self.msecs