DOC: Various minor fixes to "Contributing" docs
COSMIT disable liblinear I/O code

Reduces the number of compiler warnings, trims down .so,
reduces potential linker clashes.
Deleted redundant files
Skip k-means parallel test on Mac OS X Lion (10.7)

There is a bug that occurs in the BLAS DGEMM function after a fork on
Mac OS X Lion that causes this test to hang. See issue #636 for details.
This commit causes the test_k_means_plus_plus_init_2_jobs test to be
skipped on this platform.

The Mac version is determined from platform.mac_ver() similar to how it
is described in the following link. I couldn't find a 'cleaner' way.

http://stackoverflow.com/questions/1777344/how-to-detect-mac-os-version-using-python
Merge pull request #694 from njwilson/skip-kmeans-2-jobs-mac

Skip k-means parallel test on Mac OS X Lion (10.7)
Merge pull request #692 from njwilson/minor-doc-fixes

DOC: Various minor fixes to "Contributing" docs
Had a link to autopep8
color change for button
FIX: Delete temporary cache directory

The cluster/plot_feature_agglomeration_vs_univariate_selection.py
example was leaving temporary files in the current directory. The
examples/cluster/joblib/ directory remained after running the example.
This commit moves the cache to a temporary folder.
Merge pull request #695 from njwilson/tmp-dir-for-cache

FIX: Delete temporary cache directory
BUG: Fix metrics.aux() w/ duplicate values

Fixes #691. Thanks to Olivier Grisel for basically handing me the
solution.
Merge pull request #696 from njwilson/issue-691

BUG: Fix metrics.aux() w/ duplicate values
Sparse tests, but they are currently failing. Committing for comment
FIX: Add NORMALIZE_WHITESPACE to broken doctest
Merge pull request #698 from njwilson/master

FIX: Add NORMALIZE_WHITESPACE to broken doctest
OPTIM: skip buffer unpacking in kmeans
Typo for "neighbours", and converted to en-US
Stop passing keyword arguments for positional args

The base SVM class constructors take positional arguments, but some of
their subclasses were passing some of the arguments in as keyword
arguments.
Add verbose parameter to SVMs (fixes #250)

Add a verbose parameter to SVMs to get verbose output from libsvm
printed to stdout while fitting a model.

Note that this setting takes advantage of a per-process runtime setting
in libsvm that, if enabled, may not work properly in a multithreaded
context.
Merge pull request #699 from njwilson/issue-250

Add verbose parameter to SVMs (fixes #250)