* Assert alignment is suitable for atomic accesses

* Move fields and pad to meet alignment constraints

* Add padding to JackEngineControl to account for inherited data

* Parenthesise padding length for clarity

* Revert "Parenthesise padding length for clarity"

This reverts commit 1f757b9ece.

* Revert "Add padding to JackEngineControl to account for inherited data"

This reverts commit 3d8c7d83ad.

* Revert "Move fields and pad to meet alignment constraints"

This reverts commit ff631bbbdc.

* Assure alignment by using 'alignas' on fields

Closes #685

git-svn-id: http://subversion.jackaudio.org/jack/jack2/branches/libjacknet@4005 0c269be4-1314-0410-8aa9-9f06e86f4224

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@3993 0c269be4-1314-0410-8aa9-9f06e86f4224

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@2965 0c269be4-1314-0410-8aa9-9f06e86f4224

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@2880 0c269be4-1314-0410-8aa9-9f06e86f4224