example title change
gallery effects,icon change,cleanups
typo fix and heading changes
fix indentation error-cause lots of build warnings
4 thumbs per row/hover effect/some cleanup
fix for iris dataset
line_count sort added, some changes reverted
move comment out of list
remove comment, undo change
rename example title
BUG: ElasticNectCV choosing improper l1_ratio

The code was lacking good tests: it had only smoke tests. Shame on
me (I am the author).
PY3 allow multiple base classes in six.with_metaclass

Imported from https://bitbucket.org/gutworth/six/pull-request/10/fix-for-23-by-allowing-to-specify-multiple/diff
PY3 fix metaclasses. See #1829.
DOC correct / simplify dbscan examle
Merge pull request #1839 from amueller/dbscan_example

MRG correct / simplify dbscan examle
Merge pull request #1836 from kmike/master

Fix ABCMeta under Python 3.x
get rid of ``rho`` in sgd documentation - has been replaced by ``l1_ratio``
Cosmit: more idiomatic way of clipping to zero.

The test also runs 300 milliseconds faster on my machine (1.3s instead
of 1.6).
Demystify magic values in NNLS implementation.
BUG: fix replacement for _neg.