lets make a regular zip
thanks Tasssadar
 http://forum.xda-developers.com/nexus-4/orig-development/mod-multirom-v24-t2472295/post56746228#post56746228

Change-Id: Ib30627a88150dfe43610edc136268915cb2e1813
build: Don't use block mode by default, allow it to be chosen

Currently this uses the same logic as backuptool (but inverted)

i.e. block mode will be disabled in all cases where backuptool is enabled
which is the current default for all Omni builds.

Block mode is not needed now, and may never be needed for custom projects,
as block mode is preparation for dm-verity, which is mostly pointless on
devices with unlocked bootloaders since the kernel already has broken
the chain of trust.

TODO:  Determine if Nexus 9 *requires* blockmode.  If it does, this
may need to be reworked to allow the device to specify blockmode.

Change-Id: I36725b44f4066a43ec7e1615bd4b072f7eb3db28

Conflicts:
	core/Makefile
whoops

Change-Id: I7290480720b44fb91a1fdc39483776bc26e997b8