Ditz issue update
Release note update
Bump DUK_VERSION for v0.11 release
Release checklist update
Release note update
Release checklist update: candidate tar.xz
Silence some debug unused var warnings

These only occur with DUK_OPT_DEBUG set with none of the debug print
levels set.  The configuration is not very useful so these warnings
(some are still left) are not very important.
Release checklist update: DUK_OPT_DPRINT
Windows compile warning fix (at least MinGW64)
Improve int type limit debug printing
Release checklist update