Choose O2 optimisation level

    * src/2dfir/Makefile.in: Regenerated
    * src/blowfish/Makefile.in: Regenerated
    * src/common.mk.am: Choose O2 optimisation level
    * src/compress/Makefile.in: Regenerated
    * src/crc32/Makefile.in: Regenerated
    * src/cubic/Makefile.in: Regenerated
    * src/dijkstra/Makefile.in: Regenerated
    * src/fdct/Makefile.in: Regenerated
    * src/fft/Makefile.in: Regenerated
    * src/float_matmult/Makefile.in: Regenerated
    * src/gdb-advance/Makefile.in: Regenerated
    * src/gdb-all-types/Makefile.in: Regenerated
    * src/gdb-anon/Makefile.in: Regenerated
    * src/gdb-arrayidx/Makefile.in: Regenerated
    * src/gdb-async/Makefile.in: Regenerated
    * src/int_matmult/Makefile.in: Regenerated
    * src/lms/Makefile.in: Regenerated
    * src/rijndael/Makefile.in: Regenerated
    * src/sha/Makefile.in: Regenerated
    * src/template/Makefile.in: Regenerated
Merge branch 'beebsv2' of github.com:mageec/beebs into beebsv2