Prune system.prop of obsolete properties

Change-Id: I6b69d6bfbca7ebdd0b4e535600093b193be256e7
Move properties out of PRODUCT_PROPERTY_OVERRIDES where possible

Change-Id: Iec19d06108c47e48bb82f2bf161ad90cfe27ab28
encore: don't create /rom world-writable

Change-Id: I7d96cc933a1a6bc36312ef9d0ac1f88890fde2f1
Revert "Use a separate kernel config for CM10.2 builds"

With the end of CM10.1.x stable releases, we're free to break the kernel
ABI, so we're back to having a single config for CM10.1+.

This reverts commit 9a2ab05c01ee27fdbafee5a50174cfb32ba6b0e1.
Build with new encore-omap3-3.0.y kernel branch

Change-Id: I480102a666764ba66873897a30d0111e2e120111