Bug 1019218 - Update org.mozilla.gecko.R when resources are changed in Eclipse. r=rnewman
DONTBUILD NPOTB

This is particularly important when changing strings.xml.in or changing
the set of Android identifiers; without this, the Fennec code
referencing R is not updated.  This can either lead to compilation
failures, or missing resources at run-time, leading to strange crashes
on start-up.