Update to 3.3.54
    
    - New upstream release 3.3.54
      - Added LZ4 double compression on hierarchy tree for FST when hierarchy size
        exceeds 4MB
      - Fix to regular expression filtering when +I+ form expressions are
        encountered in the SST; previously, the wrong value of regex match was used
        on 32-bit architectures due to the stack layout
      - Removed --disable-inline-asm ./configure flag as inline assembly has been
        removed because it is generating incorrectly in some cases on x86_64