1.29: make Underscore_Names opt-in
Add test for SO25069578 (cannot repro)
1.30: better async cancellation
don't rely on First() on a dictionary for default feature support
avoid finally/await pre C# 6
allow null arrays on suitable RDBMS
r1.31; Issue 148/149: error message on bad column maps borked due to sequential access
Support SqlGeography as well as DbGeography
1.32: Support for SqlGeography in core library
1.33: SqlGeometry (core) and DbGeometry (EF) support
1.34: Support for SqlHierarchyId (core)
Merge remote-tracking branch 'upstream/master' into arbitrary-multi-maps

Conflicts:
	Dapper NET45/SqlMapperAsync.cs