Fix /cache permissions for the dexopt cache

Change-Id: Ibbecac2b5a89d7fa7fb09c5be1d2bc3db766f885
Fixed improper size displaying in 'df' utility

'df' command used to display filesystem usage statistics as integer
values, in most cases rounding the actual value down. Because of
that 'df' tended to display faulty size values.
This fix to 'df' utility calculates the fractional part of the size,
then it rounds it when needed to the nearest one-digit integer value
and displays after decimal dot.

Change-Id: I9bc52635d45d3e55ce61b3b1c6b80d1267516e75
Signed-off-by: Chirayu Desai <cdesai@cyanogenmod.org>
add 8K 16K 32K 64K and 128K pagesizes in bootimage

Ported from jellybean (was Change-Id: I4bc74ad6b0a473de68c906422bcd7eac00c89793)

http://review.cyanogenmod.org/33216

Signed-off-by: ChampionSwimmer <android@championswimmer.tk>
Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I0ee608b74a1daefe536b9247f99368f3e043f93d