agc: using floating-point precision for all get/set arguments
firfilt: adding execute_block() method
iirfilt: adding execute_block() method
eqrls: cleaning up code a bit, adding useful comments
autocorr: adding execute_block() method
firinterp: adding execute_block() method
iirinterp: adding execute_block() method
firdecim: simplifying interface, removing sample phase

  * could previously specify sampling phase when running execute()
  * made the interface more confusing, and the sampling phase was always
    chosen to be zero for all applications
  * new API does reduce functionality slightly, but it can be added
    later if necessary
firdecim: adding execute_block() method
iirdecim: simplifying interface, removing sample phase
iirdecim: adding execute_block() method
firfarrow: adding execute_block() method
Merge branch 'master' of liquidsdr.org/liquid-dsp
freqmodem: trivial comments edits