Connect to MS SQL Server 2012 Express via ODBC.
- trac.report.execute_paginated_report 
- plugins will be enabled only on $project/plugins or written as enabled on $project/conf/trac.ini. when initenv, We have no way to enable it?
like source:trunk/OdbcBackendPlugin/odbc_backend/odbc_backend.py#L11, setting BoolOption? to "enabled" as default leads same effect to written as enables on trac.ini.