Adding some common used overloads for Query, Execute and QueryMultiple

(schema change detection) actually, don't need hash to depend on types; the binding code only considers names, not types - generated code would be the same even if this doesn't change

Rewrite of the schema-change handling; the "see if it errors, then recalc" is, it turns out, stupid.

Added Overloads for commandType and transaction for CSHARP30 Directive for adding common call's signatures and also mantain language compatibility with pre-VS2010

Add a .gitattributes

Updated Readme

Support enums (and nullable enums) in Query<T>, and check (extra tests) that they work fine for regular T with an enum / nullable-enum member

Fixed a NullReferenceException when merging DynamicParameters

Add support for dictionaries/expandos to DynamicParameters + Refactoring

Add Npgsql nuget package

SQL Compact 4 support

Changed CreateTableConstructor to work for child table type

Throw an exception when asked to Delete<MyType>(null)

Throw an exception when asked to Delete<MyType>(null) rather than trying to as in Npgsql it will delete the whole table.

Added test for Posgresql Array parameters

Added test for insert updating object's key

Update object's key(s) after insert and array parameter support.

Added FeatureSupport Class to handle variations int DBMS features, used this to implement native array parameters for Postgresql.

Small but useful (I think) additions