lal_transferfunction:  numerous fixes to fir filter generation.  calibration_parts.py:  data cleaning function

- harmless in current use

gstlal-calibration:  new element lal_transferfunction to compute transfer functions between 2 or more channels in real time.

gstlal_etg: fixed bug where hdf dataset rewrites caused pipeline to crash, fixed bug where last set of hdf triggers were not being written

gstlal_etg: added hdf file saving ala h5py, added utility functions and classes to idq_aggregator.py

- V1 must be removed from the coinc rates model in the denominator because
  all coincs will be made to be V1-less in the .__call__() method

- in gstpythonplugin

- from /usr/lib in Debian packages

- use AC_SUBST macro itself to set variable's value

- update gstlal-ugly's .spec and debian/install files to account for addition of library code to the package
- alphabetize gstlal and gstlal-inspiral's files
- don't package the /usr/include/ directory, only its contents

 - "gds-dev" --> "gds-devel" in .spec
 - remove multirate's Makefile.in from configure.ac as it's not packaged

- ax_append_flag.m4