* OUTER APPLY fix
* OUTER APPLY fix

* run SqlServer2008 tests also on SqlServer2012/2014
* switch off some tests for Sybase (yes, we do found Sybase bug)
* documentation about managing connections

MaceWindu/linq2db,sdanyliv/linq2db,LinqToDB4iSeries/linq2db,sdanyliv/linq2db,genusP/linq2db,ronnyek/linq2db,genusP/linq2db,jogibear9988/linq2db,LinqToDB4iSeries/linq2db,linq2db/linq2db,MaceWindu/linq2db,enginekit/linq2db,jogibear9988/linq2db,lvaleriu/linq2db,lvaleriu/linq2db,linq2db/linq2db