[Discuss-gnuradio] gr-howto-write-a-block refactored

[Eric Blossom]

Hi folks,

I just committed a change to gr-howto-write-a-block that now has it
install in the "howto" python namespace instead of in the
"gnuradio.howto" namespace.

This allows howto (or other things based on it) to install under a
non-system prefix.  For systems using binary GR packages, this means
that user written "out of tree code" will not have a conflict with the
"gnuradio" namespace.

>From a high level point of view, this changes means that if you're
using these blocks, you would now import them using

  import howto

instead of

  from gnuradio import howto

Eric