SCons support in LilyPond

[John Mandereau]

Hi Jan,

Have you any plan for maintaining Scons support in LilyPond?  The Python
code hasn't been updated to be compatible with Python 2.6/3.0, and it
calls scripts in stepmake/bin or buildscripts that have been removed
several years ago.  If we have no interest in maintaining this, I
propose to remove it (SConscript files and buildscripts/builder.py), in
order to avoid confusion for people who discover the sources or
maintainers like me who update Python code and makefiles.

Best,
John