Bug 961: Fix commit fdd60adb1d421f2018b47ee17e9079c94b54910f (memmove byte-count)

memmove's byte-count was just giving the element-count, missing the element-size multiplier to actually pass byte-count
doc/Platforms.txt: Update Virtualbox 4.3 Tests .. w/ Debian Host and Client (Wheezy Mesa 8.0.5-SW and Jessie Mesa 9.2.2-SW)
Merge branch 'master' into 2.2-train