Adaptions to test with respect to new namespace model
Removed GMP/CLN and, where it was present, replaced by TTMATH
Small fix in comparable_distance test
All testfiles use bg as alias now
[SVN r66811]
Added test/algorithms/overlay/ccw_traverse.cpp to test counterclockwise polygon overlays
Added test/algorithms/overlay to standards Jamfile.v2
Moved some testcases to overlay_cases.hpp
Some warning removals in test cases
[SVN r65913]
