Merge branch 'exp_api_change'

libcelt/celt.c

libcelt/celt.h

libcelt/cwrs.c

libcelt/dump_modes.c

libcelt/kiss_fft.c

libcelt/mdct.c

libcelt/modes.c

libcelt/modes.h

libcelt/rate.c

libcelt/static_modes_fixed.c

libcelt/static_modes_float.c

libcelt/testcelt.c

tests/dft-test.c

tests/mdct-test.c

tests/tandem-test.c

tools/celtdec.c

tools/celtenc.c