setup.py: fix import line
setup.py: Move sbin scripts in bin/

Remove unused *_sbin classes
Prevent the deprecated-path script from being installed with other PORTAGE_BIN_PATH scripts.
Update the version for testing the new ebuild generated deprecated-path symlinks, bugfixes.
Re-apply "Rewrite default ebuild phase setting code" (bug 523182)"

Add empty default src_prepare() as required by PMS
Add missing bind for pkg_nofetch. Spotted-by: Zac Medico <zmedico@gentoo.org>

X-Gento-Bug: 523182
X-Gentoo-URL: https://bugs.gentoo.org/show_bug.cgi?id=523182
Merged 3 pathces by: Brian Dolbec <dolsen@gentoo.org>
Split install_qa_check() into install-qa-check.d scripts

Convert the horrendous install_qa_check() function into a plug-in system
that calls separate QA checking scripts from install-qa-check.d.
Run install-qa-check.d scripts from repositories

---
(following the remaster of install_qa_check())
Allow inheriting utility eclasses in QA checks

Allow inheriting utility eclasses for use in QA checks. The eclasses can
be used e.g. to obtain paths or other data needed for the check.
However, the eclasses must not export phases or set ebuild metadata.
Update gcc warning checks to work with colored output

Use -W indicators whenever possible, or more flexible regular
expressions so that our checks correctly match output with
-fdiagnostics-color. Also, enable a few extra warnings with some
of the currently used -W flags.

Based on the patch from Ryan Hill <rhill@gentoo.org>.
Use a single grep call for gcc warning checks

Use a single grep call with all gcc warning checks combined rather than
calling grep separately for each message being checked. Aside to being
faster, this also avoids outputting warnings in separate blocks.