profile-manual: Updates to the LTTng Documentation section.

The LTTng Documentation website has been updated to actually
have extensive documentation now.  Previously, in the profile-manual,
we were stating that documentation did not exist, which was true
at the time of writing.  I updated the section to link to the
main LTTng documentation website and altered some other text in
the section appropriately.

Additionally, I found and corrected a couple spelling errors in
this chapter.

(From yocto-docs rev: d40ea4d8cfcbc225025d73288cd01336e0d41afc)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
dev-manual: Updated the "Making Images More Secure" section.

Fixes [YOCTO #5482]

I did some significant re-writing and re-organization of this
section.  It now includes a bit about securing an image in general,
provides general considerations, considerations specific to the
OpenEmbedded build system, pointers to some tools in meta-security
layer, and some other items.

I added some key references to the section on considerations
specific to the OpenEmbedded build system.  In particular, I
provided some cross-linking back to the extrausers.bbclass
section to reference an example of adding a user account.  I
also split out the topics of adding an extra user and setting
a password on the image in the bulleted list.

Updated the setting root and extra user's passwords.  Also,
permanently removed the reference to the wiki that showed the
less optimal way of setting a root password.

Added a cross-reference to the meta-selinux layer in the section
that describes how to make images more secure.

(From yocto-docs rev: 812bf8e2c91c4dd14a2245509ea7008a24e90835)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
file: add wrapper to nativesdk-file

Backport commit 69a3ab3 to 'daisy' which uses a different version of
file package.

Author of the original patch: Hongxu Jia <hongxu.jia@windriver.com>

(From OE-Core rev: 4bd4da1e1433ae64720f59d48188ecd1960dac28)

Signed-off-by: Javier Viguera <javier.viguera@digi.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
fix cpan builds

* add support even for xs modules with more than 3 levels as
  B::Hooks::End::Of::Scope or Math::Random::ISAAC::XS
* correct handling of Module::Build (as far as stolen from pkgsrc
  and my humble knowledge)
* configure to install to vendor_libs as default, even when
  inherited do_install remains unused (overwritten do_install)
add support for checkout to different path

avoid checkout is always module - svn is path based and tag/branch-checkout
might break builds because of invaid pathsepcs
Perl: fix PERL5LIB settings

The PERL5LIB settings in the perl wrapper script did not include the
"site_perl" or "vendor_perl" directories, which caused some errors.

See https://bugzilla.yoctoproject.org/show_bug.cgi?id=6890

Signed-off-by: Wolfgang Denk <wd@denx.de>