Sync LLVM 3.4 port with the 3.3 version.

ok drahn@
Add AArch64 compile support to LLVM 3.4.

Bump revision.

ok drahn@
Update patches, only line changes.

ok drahn@
Regenerate patchfiles

ok patrick@
Lack of multi include #ifdef caused build error.

ok patrick@
Adjust plist to package.

ok patrick@
Add MODGNU_CONFIG_GUESS_DIRS

ok patrick@
fix freeradius

freeradius ships with its own libtool, so the '| bitrig*' libtool fixes
need to be added to freeradius as well.

ok natano@
Make www/chromium build.
Make x11/gtk+3 build.