Negligible change to my bio in docs/internals/committers.txt
Removed BDFLs section from docs/internals/committers.txt
Removed BDFL stuff from docs/internals/contributing/bugs-and-features.txt
Remove unneded open(.., 'U') when on python 3.

Universal newlines is enabled by default on py3, and the usage of 'U' is
deprecated in py3.4.
Fixed #21774 -- Isolate all test urls from eachother.

This (nearly) completes the work to isolate all the test modules from
each other. This is now more important as importing models from another
module will case PendingDeprecationWarnings if those modules are not in
INSTALLED_APPS. The only remaining obvious dependencies are:

- d.c.auth depends on d.c.admin (because of the is_admin flag to some
  views), but this is not so important and d.c.admin is in
  always_installed_apps
- test_client_regress depends on test_client. Eventually these should
  become a single module, as the split serves no useful purpose.
Fix typo in storage docs