1.0.1

1. Fixed impossibility to implement automatic nested derive.
2. Added ability to compare SafeManuallyDrop with UnsafeStdManuallyDrop.
3. Documentation updated, panic fixed
4. Added allow_fullinternal_debug_assertions build flag to enable or disable additional library sanity checks that do not affect tracking of valid or invalid ManuallyDrop work.
5. Added build flag always_build_flagstable to control whether to enable or disable the build of the flags table used in the build.
6. Added support for the doc_rs flag for documentation nightly builds. Now the assembly features comments will be more informative.