Fix issue 119 ("memory leaks")
Fix issue 119 ("memory leaks")

In pymssql.Connection, rename __del__ to __dealloc__. The latter is used by
Cython; the former is not.

bladams/pymssql,JimDennis/pymssql,msabramo/pymssql,klothe/pymssql,pymssql/pymssql,bladams/pymssql,ramiro/pymssql,msabramo/pymssql,ramiro/pymssql,zerolugithub/pymssql,Aloomaio/pymssql,JimDennis/pymssql,zerolugithub/pymssql,bladams/pymssql,klothe/pymssql,zerolugithub/pymssql,Aloomaio/pymssql,JimDennis/pymssql,Aloomaio/pymssql,pymssql/pymssql,klothe/pymssql,msabramo/pymssql,ramiro/pymssql