added new folder for prebuilt emulator
added clang 3.5 prebuilts for emulator builds, refactoring

added clang 3.5 prebuilts for emulator builds

removed obsolete x86_64-linux-glibc2.11-4.6 rebuilts

moved master/release invariant projects to bottom of file to make
merging between branches easier

added revision=”master” even in master version of file to make
comparisons to other branches easier