tree db44a1646f6f02c2105bf7946359076cf1d0a864
parent 62d0b10a7bea2aa5cb7593ff12d14c482a1a663c
author Brian Harring <ferringb@google.com> 1339124735 -0700
committer Brian Harring <ferringb@google.com> 1339125544 -0700

Restore include support.

Calculation of where the include file lives was broken by 23acdd3f14
since it resulted in looking for the first include in .repo, rather
than .repo/manifests.

While people can work around it via setting their includes to
manifests/<include-target>, that breaks down since each layer of
includes would then have to be relative.

As such, restore the behaviour back to 2644874d; manifests includes
are calculated relative to the manifest root (ie, .repo/manifests);
local manifests includes are calculated relative to .repo/ .

Change-Id: I74c19ba614c41d2f08cd3e9fd094f3c510e3bfd1