Fix security issue due to multiple accesses. Version bump to 3.1

Author: wcdolphin

.travis.yml

@@ -0,0 +1,10 @@
+language: python
+python:
+    - 2.6
+    - 2.7
+
+install:
+    - python setup.py install
+script:
+    - python test/test.py
+

README.md

@@ -1,6 +1,7 @@
 Python bcrypt
 ============
 
+Testing Travis CI
 This repository is a continuation of the [Google Code project](http://code.google.com/p/py-bcrypt/), which has not been updated in more than a year.
 
 Most significantly, this clone applies a number of patches which allows compilation on Windows
@@ -31,7 +32,7 @@ If you are having issues compiling on Windows using VC++, fix the msvc9compiler
 benghattem@gmail.com
 Providing the basis for this patch, fixing compilation flags and ifdefs [patch](http://code.google.com/p/py-bcrypt/issues/attachmentText?id=1&aid=10003000&name=py-bcrypt_11.patch&token=EFCIp9qVR4pi3SaJ7kDaVmy3OQc%3A1346047268712)
 
-florian.ruechel@gmail.com 
+florian.ruechel@gmail.com
 Extending the patch and fixing memset + bzero issues to make the code more standards compliant [patch](http://code.google.com/p/py-bcrypt/issues/attachmentText?id=1&aid=10008000&name=py-bcrypt.patch&token=esLPoSRqwBo90FHQ2B_NOyZbtas%3A1346047268714)
 
 Original README