documentation: Add JSR 305 and AOP Alliance to licenses

We've been using the AOP Alliance JAR since we switch to using
Google Guice, but we failed to document in our notice file.  It is
a public domain JAR, so no major harm done, but we should still
cover that we use it.

We added JSR 305 for the @Nullable annotation during the 2.1.2
development cycle, but we failed to document its BSD style license.

Change-Id: Iaeb597cd475e2f813302eefa6fa8ecbaad511903
Signed-off-by: Shawn O. Pearce <sop@google.com>
1 file changed