WEB: adding institutions logos to the website

did only for online version for now
Merge branch 'website-updates/www-html'

* website-updates/www-html:
  WEB: adding institutions logos to the website
More citations
Merge branch 'master' of github.com:PyMVPA/PyMVPA

* 'master' of github.com:PyMVPA/PyMVPA:
  WEB: adding institutions logos to the website
  BF: make test_array_collectable_unique work correctly on both python2 and python3
  BF: import externals not only in __debug__
  BF: allow to store objects with None state, e.g. python's sets
  BF: provide flush for our stdout wrapper so it would be found
  TST(PY3): another workaround np.unique on arrays with None -- do not rely on the order of splits while testing
  TST: do not rely on knowing repr of a dictionary (order varies) while testing AttributeMap repr
  TST: do not test all dependencies upon setup_module unless MVPA_TESTS_VERBOSITY>=2
  BF: import externals not only in __debug__
  RF: sklearn compatibility -- use new name l1_ratio instead of rho
  BF(PY3): test_collections -- make comparisons robust for python3
  BF(PY3): there is no 'classes' in our suite_stats() for python3 -- only 'types'
  BF(PY3): BinaryClassifier - do not convert labels list to set and back to list
  BF: fixing Dataset doctest for numpy 1.7 changes on how .base are defined
  BF: minor fixes around for tests to pass in daily_tests
Fix URL
Datadb placeholder for forrest gump
Include code links
Merge branch 'master' of https://github.com/PyMVPA/PyMVPA
BF: flat surfaces merged are optional; throw an info message rather than an error if not present