* made Token readonly like a tuple by using @property

* end_pos calculation didn't respect multiline tokens
* replaced all index access to Token
* wrapped all code that injects token tuples with
  Token.from_tuple()
* repr of Token is still its tuple form!?
* PEP8 where I read or wrote code

test/test_token.py

@@ -0,0 +1,25 @@
+import jedi.parser as parser
+
+try:
+    import unittest2 as unittest
+except ImportError:  # pragma: no cover
+    import unittest
+
+
+class TokenTest(unittest.TestCase):
+    def test_end_pos_one_line(self):
+        parsed = parser.Parser('''
+def testit():
+    a = "huhu"
+''')
+        tok = parsed.top_module.subscopes[0].statements[0].token_list[2]
+        self.assertEqual(tok.end_pos, (3, 14))
+
+    def test_end_pos_multi_line(self):
+        parsed = parser.Parser('''
+def testit():
+    a = """huhu
+asdfasdf""" + "h"
+''')
+        tok = parsed.top_module.subscopes[0].statements[0].token_list[2]
+        self.assertEqual(tok.end_pos, (4, 11))