Implement E101. No mixing of tabs and spaces in indentation.

test/normalizer_issue_files/E10.py

@@ -0,0 +1,44 @@
+for a in 'abc':
+    for b in 'xyz':
+        print a  # indented with 8 spaces
+        #: W101:0
+	print b  # indented with 1 tab
+if True:
+    #: W101:0
+	pass
+
+change_2_log = \
+"""Change 2 by slamb@testclient on 2006/04/13 21:46:23
+
+	creation
+"""
+
+p4change = {
+    2: change_2_log,
+}
+
+
+class TestP4Poller(unittest.TestCase):
+    def setUp(self):
+        self.setUpGetProcessOutput()
+        return self.setUpChangeSource()
+
+    def tearDown(self):
+        pass
+
+#
+if True:
+    #: E101:0
+	foo(1,
+	    2)
+
+def test_keys(self):
+    """areas.json - All regions are accounted for."""
+    expected = set([
+	u'Norrbotten',
+	u'V\xe4sterbotten',
+    ])
+if True:
+    print("""
+	tab at start of this line
+""")