A few assert fixes (remove compiler warning)
Debug dump a few more sizeofs
Use 'int' for 'duk_int_t' when large enough

The 'int' type is very likely to be a type convenient for the CPU and
compilers are bound to handle it well.  Also change codepoint type to
use duk_int_t instead of a duk_int_fast32_t.

On x64, 'int' is 4 bytes but duk_int_fast32_t is 8 bytes, which has a
somewhat visible impact on at least code footprint, so 'int' is most
likely preferable for x64.
Update guide typing for duk_int_t->int
Merge branch 'duk-int-tweak'
Ditz issue update
Add limit defs for types like duk_uarridx_t

These are needed for some assertions.
/Wp64 fixes for VS2010 on x86
Regexp compiler /Wp64 fixes
/Wp64 portability note to guide
Release note update
A few more /Wp64 fixes
Merge branch 'wp64-x86-fixes'
Ditz issue update
Remove requirement that INT_MAX is >=32 bits
Merge branch 'remove-int32-limit'
Unreachable return value fix
Merge branch 'trivia-retval-fix'
Ditz issue update
Two's complement arithmetic guide note