log: replacing log4cxx with log4cpp.
Merge remote-tracking branch 'gr3.7_log4cpp'
log: more minor fixups integrating gr-logger.
Merge branch 'master' into gr_log
Conflicts: cmake/Modules/GrMiscUtils.cmake docs/doxygen/other/main_page.dox gnuradio-core/gnuradio-core.conf.in gnuradio-core/src/lib/swig/CMakeLists.txt gr-digital/lib/CMakeLists.txt gr-howto-write-a-block/CMakeLists.txt...
cmake: fix typo in cmake swig module
howto: adding gr_log checks to build.
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.
howto: moving uninstall rules into correct location.
Merge branch 'master' into next
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