matrix/test: adding certain scripts to automate data generation
matrix/test: printing matrix index, adding 'add' test
matrix/test: adding scripts to generate full complement of real tests
matrix/test: adding auto-generated data files for compact testing
Merge branch 'master' of ganymede
matrix/test: adding auto-generated complex data files
Merge branch 'master' of /home/jgaeddert/git/liquid-dsp
iirfilt/benchmark: cleaning benchmark helper function (clarifying)
iirfilt/example: cleaning basic crcf example to design with prototype
iirfilt: adding cccf example

  * intent is to demonstrate band-pass response
  * need to modify iirfilt_cccf_create_prototype()
  * use one-sided (complex) band for LIQUID_IIRDES_[BANDPASS|BANDSTOP]
iirfilt/example: adding spectrum plot of input/output signals
firdes/example: specifying filter length rather than transition band
benchmark: extending name in regular print to standard output
freqmodem: cleaning up internal structure, adding useful comments
sandbox: adding iirfilter integrator/differentiator test

  * does not have proper gain value
  * coefficients were derived from digital zeros/poles, gain=1
  * also, integrator output seems to be negated
sandbox/iirfilt_intdiff: deriving coefficients from zeros/poles

  * digital gain was computed emperically
  * need to find more appropriate way of determining gain
  * composite transfer function of integrate+differentiate not flat
iirfilt: adding integrator and differentiator

  * based on Rik Pintelon and Johan Schoukens, "Real-Time
    Integration and Differentiation of Analog Signals by Means of
    Digital Filtering," IEEE Transactions on Instrumentation and
    Measurement, vol 39 no. 6, December 1990.
  * still needs testing; perhaps autotest script to test integration
    of complex sinusoid
  * gain values chosen emperically (see sandbox/iirfilt_intdiff_test.c)
doc/fm: adding better mathematical description of FM
Merge branch 'master' into fm-dev
freqmodem: cleaning up plot parameters in example