add support for SQL Server 2014

Author: michiya

README.rst

@@ -12,7 +12,7 @@ Features
 --------
 
 -  Supports Django 1.2, 1.3, 1.4, 1.5
--  Supports MS SQL Server 2005, 2008/2008R2, 2012, and Windows Azure SQL
+-  Supports MS SQL Server 2005, 2008/2008R2, 2012, 2014 and Windows Azure SQL
    Database
 -  Supports LIMIT+OFFSET and offset w/o LIMIT emulation.
 -  Passes most of the tests of the Django test suite.

sql_server/pyodbc/operations.py

@@ -32,7 +32,9 @@ def _get_sql_server_ver(self):
         cur.execute("SELECT CAST(SERVERPROPERTY('ProductVersion') as varchar)")
         ver_code = cur.fetchone()[0]
         ver_code = int(ver_code.split('.')[0])
-        if ver_code >= 11:
+        if ver_code >= 12:
+            self._ss_ver = 2014
+        elif ver_code == 11:
             self._ss_ver = 2012
         elif ver_code == 10:
             self._ss_ver = 2008