work around a bug in Mac OS X 10.9 when used with XCode 5.1

See this page for more details:
http://stackoverflow.com/questions/22313407/clang-error-unknown-argument-mno-fused-madd-python-package-installation-fa
Python: fixed two clang warnings
Python: fixed plot() when used with a VertexDendrogram and a bounding box specifies as a 4-tuple; closes #603
LAPACK: fixed uninitialized variables (and hopefully the failing Python tests as well)
Python: write_svg now supports file handles and edge_stroke_widths
Python: validate the wrapped index in Vertex or Edge objects where it could cause problems
Python: fixed typos in the layout test cases
Python: Graph.__init__ documentation and usability fixes, thanks to Arpad Horvath
Python: fixed a DeprecationWarning on Python 3.x
WWW updates for 0.7.0 release
C docs, remove an ampersand, not allowed in XML
WWW: ignore the Python stuff, temporarily.
C & R 0.7.1 release posts added
R: updated NEWS file for 0.7.0 and 0.7.1
Change a long long to long in PRPACK

R CMD check is complaining that long long is
not ISO C++ 1998.
WWW: add realdeploy target to really deploy
Fix 0.7.1 C news post
WWW: add .htaccess file, needed for nightly.py
Remove web, it is in a separate repo now
R: do not pause() demos if run non-interactively