- The source code for LCExt extension methods is now placed in the source file for each adapter class (e.g. CollectionAsReadOnly.cs) to make it easier to use parts of Loyc.Essentials rather than the entire library.

- Added Description() and InnermostException() extension method for exceptions, ExceptionTypeAndMessage() is now ExceptionMessageAndType().
- Fixed name of IIncrementer (was IInrementer)