Updated changelog and docs

Author: mitsuhiko

CHANGES.rst

@@ -1,8 +1,21 @@
+Version 1.1.0
+-------------
+
+Released 2018-10-26
+
+-   Change algorithm back to SHA-1
+-   Add support for fallback algorithm
+
 Version 1.0.0
 -------------
 
 Released 2018-10-18
 
+YANKED
+
+*Note*: this release was yanked from pypi because it changed the default
+algorithm to SHA-512.  This decision was reverted and it remains at SHA1.
+
 -   Drop support for Python 2.6 and 3.3.
 -   Refactor code from a single module to a package. Any object in the
     API docs is still importable from the top-level ``itsdangerous``

src/itsdangerous/signer.py

@@ -38,7 +38,7 @@ class HMACAlgorithm(SigningAlgorithm):
     """Provides signature generation using HMACs."""
 
     #: The digest method to use with the MAC algorithm. This defaults to
-    #: SHA-512, but can be changed to any other function in the hashlib
+    #: SHA1, but can be changed to any other function in the hashlib
     #: module.
     default_digest_method = staticmethod(hashlib.sha1)
 
@@ -74,7 +74,7 @@ class Signer(object):
     """
 
     #: The digest method to use for the signer.  This defaults to
-    #: SHA-512 but can be changed to any other function in the hashlib
+    #: SHA1 but can be changed to any other function in the hashlib
     #: module.
     #:
     #: .. versionadded:: 0.14