Add moxiebox support.
	* cygheap.h (class cygheap_domain_info): Remove lowest_tdo_posix_offset.
	* ldap.cc (cyg_ldap::fetch_posix_offset_for_domain): Return UINT32_MAX
	in case of error.
	* security.h (PRIMARY_POSIX_OFFSET): Define.
	(NOACCESS_POSIX_OFFSET): Define.
	(UNUSABLE_POSIX_OFFSET): Define.
	* uinfo.cc (cygheap_domain_info::init): Drop initializing
	lowest_tdo_posix_offset.
	(pwdgrp::fetch_account_from_file): Set PosixOffset to either
	UNUSABLE_POSIX_OFFSET or NOACCESS_POSIX_OFFSET in case we don't get a
	sensible offset from AD.  Explain why.  Drop setting ch
	lowest_tdo_posix_offset.
	(pwdgrp::fetch_account_from_windows): Replace constant 0x100000 with
	PRIMARY_POSIX_OFFSET throughout.
	* mkgroup.c (usage): Move info message that this /etc/group isn't really
	required anymore more to the top of the usage output.
	* mkpasswd.c (usage): Ditto for /etc/passwd.  Drop old text from output.
Add missing utils.xml
	* libc/string/strerror.c: Fix documentation so makedoc doesn't
	stumble over a sole EAGAIN.
	* cygwin.xsl: Allow 3 section levels in TOC.
	* new-features.xml: (ov-new1.7.32): Add new section.
	* ntsec.xml: Rename top-level section to reflect extension of topics.
	Remove old /etc/passwd, /etc/group considerations.  Add new sections
	explaining Windows to POSIX account mapping.  Make setuid sections
	third level sections.
	* pathnames.xml: Note new method of account mapping for fstab.d/$USER.
	* faq-setup.xml: Rework references to /etc/passwd and /etc/group to
	reflect changes to account handling.
	* faq-using.xml: Ditto.
	* new-features.xml: (ov-new1.7.1): Add new section.  Move old 1.7
	sections into section level 3.
	* new-features.xml: (ov-new1.7): Change section title.
	* ntsec.xml: Small improvments.
	* uinfo.cc (pwdgrp::fetch_account_from_windows): Fix comment.