ARM support, with some build system changes to support x86-64, arm, and i386 in an autoconf style build in Linux.  The O2 build for the unit tests is still broken but I'm checking this in to unblock people

A=nealsid
R=ajwong, hannahtang, ted.mielczarek



git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@541 4c0a9323-5329-0410-9bdc-e9ce6186880e
18 files changed