Merge branch 'maint'
Various fixes for using Python 2.5.
Merge branch 'merge/core-swig-magic'
core: add SWIG macro for namespaced blocks
cmake: fix compiler flags on ppc arch
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.
Fix some minor warnings.
filters: add alias of "BLACKMAN_HARRiS" to "BLACKMAN_hARRIS" for consistency.
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