recipes: Replace "cp -a" with "cp -R --no-dereference --preserve=mode,links"

* Using "cp -a" leaks UID of user running the builds, causing
  many QA warnings.
* See this thread for details:
  http://lists.openembedded.org/pipermail/openembedded-core/2015-November/112904.html

Dropped Lua patch as no ptest support exists in jethro

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

Conflicts:
	meta-oe/recipes-devtools/lua/lua_5.3.1.bb

meta-efl/recipes-devtools/python/python-edbus.inc

@@ -39,7 +39,7 @@ do_install_append() {
         done
         cd ${S}
         install -d ${D}${datadir}/${PN}/
-        cp -a examples ${D}${datadir}/${PN}/
+        cp -R --no-dereference --preserve=mode,links -v examples ${D}${datadir}/${PN}/
         find ${D}${datadir}/${PN}/examples -name ".svn" | xargs rm -rf
     fi
 }