Add teamcity configuration for SqlServerCe
teamcity set command_timeout to 0 when execute SqlServerCe tests
Update test results for SqlServerCe
NH-3592 - SqlServerCeDriver does not support multiple queries in one command.
NH-3193 - Port-back string functions to MsSqlCeDialect
NH-2005 - Port-back.

Move "concat" function registration from MsSqlCe40Dialect to MsSqlCeDialect
NH-3195 - Port-back.

Add support for variable limit with TOP (n) clause to MsSqlCeDialect
NH-2958 - Move mappingDocumentSerializer field from Configuration to NamedXmlDocument.

This should delay creation of XmlSerializer assembly and reduce start time of when use only by code mappings.
There is no need to cache XmlSerializer instance, as it's creation is slow only on first creation

On first creation of XmlSerializer object, the serialization assembly is created on the fly, subsequent creations are fast