Also moved some XML specific stuff into its own directory, and refactored ReferenceLinker a bit. Change-Id: I912247a82023c1bbf72dc191fbdaf62858cbec0c
Change-Id: I7f6d8b74d1c590adc356b4da55cb6cb777cdf1da
This includes comments from AndroidManifest.xml. Change-Id: I412d9ecb12bad20a49a683d6b3bea4a0be1235ae