fix raising exceptions and storing messages from the server
fix raising exceptions and storing messages from the server

ramiro/pymssql,zerolugithub/pymssql,klothe/pymssql,google-code-export/pymssql,msabramo/pymssql,bladams/pymssql,djhenderson/pymssql,djhenderson/pymssql,thegooglecodearchive/pymssql,bladams/pymssql,thegooglecodearchive/pymssql,JimDennis/pymssql,AlanZatarain/pymssql,pymssql/pymssql,MunDaesik/pymssql,Aloomaio/pymssql,msabramo/pymssql,thegooglecodearchive/pymssql,Aloomaio/pymssql,ramiro/pymssql,zerolugithub/pymssql,klothe/pymssql,ramiro/pymssql,google-code-export/pymssql,MunDaesik/pymssql,djhenderson/pymssql,JimDennis/pymssql,JimDennis/pymssql,google-code-export/pymssql,pymssql/pymssql,Alwnikrotikz/pymssql,Alwnikrotikz/pymssql,AlanZatarain/pymssql,msabramo/pymssql,MunDaesik/pymssql,klothe/pymssql,Alwnikrotikz/pymssql,Aloomaio/pymssql,bladams/pymssql,zerolugithub/pymssql,AlanZatarain/pymssql