Issue #14783: Merge changes from 3.3.

diff --cc Misc/NEWS
index f0c0bb1fa9c51a1773feaaae9d1a5574ed8ed008,9c2bd09f9abaac7ea113eaf3b58f9dbc03b8a308..422e6740970ef08c3b8c3d88ab3e137b5e236c8d
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -10,8 -12,9 +10,11 @@@ What's New in Python 3.4.0 Alpha 1
  Core and Builtins
  -----------------
  
+ - Issue #14783: Improve int() docstring and switch docstrings for str(),
+   range(), and slice() to use multi-line signatures.
+ 
 +- Upgrade Unicode data (UCD) to version 6.2.
 +
  - Issue #15379: Fix passing of non-BMP characters as integers for the charmap
    decoder (already working as unicode strings).  Patch by Serhiy Storchaka.
  

diff --cc Objects/longobject.c
Simple merge

diff --cc Objects/unicodeobject.c
Simple merge