core: removed gr_chunks_to_symbols_XX after move to gr-digital
Removed whitespace and added dtools/bin/remove-whitespace as a tool to do this in the future.
The sed script was provided by Moritz Fischer.
examples: Reworked locations and installation of examples.
All python and GRC examples directly associated with a top-level component are now in that examples directory. Examples are split into c++, python, and grc dirs but are all installed into $prefix/share/gnuradio/examples/<component>.