Add PRODUCT_BOOTANIMATION

Just add PRODUCT_BOOTANIMATION in your product
makefiles and point it to the zip file you would
like to have used as the boot animation.

The coresponsing build system handles picking
the last one, which is the last product to set this.

Change-Id: I8c95a515a8fbb92d363141eb79e254712dccc162
Signed-off-by: William Roberts <wroberts@tresys.com>
Fix for build break when PRODUCT_BOOTANIMATION is unset

Change-Id: I236c2dd35ba0e632ed327ed6dc36324c9e59587a
envsetup: Use wait-for-online so these cmds work in recovery

Change-Id: I7a85e7068f373b1d726aa6b27a51862fa9b7c6fd
Restore original behavior when PRODUCT_BOOTANIMATION is undefined

Change-Id: I3ee7141f7c26cee033b8a30824caf38fcacec5a8
Merge remote-tracking branch 'upstream/cm-10.2' into cm-10.2