fix download link and changelog.

Author: mrjbq7

CHANGELOG

@@ -7,6 +7,12 @@
 
 - [FIX]: Fix missing key error when inputs are not default names.
 
+- [NEW]: Upgrade to Cython 0.20.
+
+- [FIX]: Check all input array lengths are same.
+
+- [FIX]: Check all input arrays for NaN elements.
+
 0.4.7
 =====
 

setup.py

@@ -66,7 +66,7 @@
     author = 'John Benediktsson',
     author_email = 'mrjbq7@gmail.com',
     url = 'https://github.com/mrjbq7/ta-lib',
-    download_url = 'https://github.com/mrjbq7/ta-lib/archive/TA_Lib-0.4.7.zip',
+    download_url = 'https://github.com/mrjbq7/ta-lib/archive/TA_Lib-0.4.8.zip',
     classifiers = [
         "License :: OSI Approved :: BSD License",
         "Development Status :: 4 - Beta",