Pod version updates.
Deleted Grouped Reporter and Test Case specs.

Grouped Reporter tests are more like integration tests, and don't belong in Specs as they are integration tests.
Test Case specs are, again, meant for integration tests - just glue code for the rest of the modules.
Added pre-compilation flag `INLINE`, for other libraries to know when it is included.
Removed grouped reporter, moving behaviour to Logbook.
Removed INLINE precompiler flag. Not a good idea.