dotprod: adding function to sum squares (with autotests)
dotprod/sumsq: adding sum-squares benchmark
dotprod/sumsq: unrolling loop for slightly increased speed
dotprod/sumsq: moving target object declaration to configure

  * permits eventual migration to SIMD extensions
  * need to add special MMX, altivec, etc. targets
  * framework already in place (use dotprod_rrrf.mmx.o e.g.)
dotprod/sumsq: adding MMX/SSE version
build: fixing bug in generic dotprod target
dotprod/sumsq: simplifying code (complex input same as double-length real)
Merge branch 'master' into fpm
dotprod/sumsq: adding fixed-point implementation of sum-squares
build: adding notes regarding sumsq to README/HISTORY
build: adding blurb on fixed-point math to README
fpm/matrix: adding fixed-point matrix: base
fpm/matrix: adding fixed-point matrix: math (needs certain functionality)
fpm/filter: adding fixed-point FIR polyphase filterbank
fpm/filter: adding fixed-point arbitrary resampler
fpm/iirfilt: cleaning normalization procedure
Merge branch 'fpm' of ssh://ganymede.ece.vt.edu:9505/home/jgaeddert/git/liquid-dsp into fpm
fpm/filter: using name-mangled conversion macros
fpm/matrix: trivial typo in function name (printing error)
fpm/matrix: adding fixed-point matrix inverse methods (needs testing)