Add arm64 to VALID_ARCHS

Change-Id: Ibf1ed5ee1d7ab8319b393475c49655708e9a6d61
We seem to need lo.xcconfig here, too

Change-Id: I7db16b3736a83b9372aba11ac9ff302bc087e008
Describe the apps

Change-Id: If07fe2ddc99bf2d2a9a4bc242be22fe615a5b1f9
Avoid Perl warnings

Change-Id: I62ade513bd98e5410c1df14e890e8cc964f1eb25
Let's try to use basically the same except.cxx for iOS as for OS X

Change-Id: Ic4cdf6b91f2a71fc556c8d9c2ba3808f0d953754
More informative logging

Change-Id: I71b04086ae0418f0a6c988fc71c1e5fee6eed690
Add source files from bridges for quicker breakpoint setting

Change-Id: I7842d9d0e5786647d14d0c30be5230c05883ada2