modtool: Updated so new modules built find and link against gnuradio-runtime.
build: setting .pc files to require new gnuradio-runtime.
build: remove config.h from any header files; only use it in source files.
cleaning up ice interface
fix for missing LOG4CXX link flag in runtime
updates to FindGnuradio.cmake for core->runtime rename
runtime: missing functions in prefs swig file.
runtime: adding block_gateway back into project.
blocks: if ControlPort is disabled, do not run its QA tests.