Clearer explanation when exception has no message

"No exception supplied" is misleading; actually there is an exception,
but there's no message string.
Fixed #19237 (again) - Made strip_tags consistent between Python versions
Fixed #20080 - Recommended use of PYTHONHASHSEED

Thanks jacob for the suggestion and ryankask
for the patch.
Fixed #20482 - Added a file reference in tutorial 3.

Thanks diek@ for the suggestion.
Fixed #20417 - Noted that a server restart is required to load new templatetag modules.

Thanks Katya for the suggestion.
Fixed #20474 -- Proxied and deprecated django.db.backend
Delayed settings.DATABASES usage by ConnectionHandler

Refs #20474.
Delayed settings.DATABASE_ROUTERS usage by ConnectionRouter

Refs #20474.
Fixing some FIXMEs in howto-release-django. Refs #20082
Update my employer.
Added back a link to docs/internals/committers.txt
Fixed #20316 - Clarified transaction behavior of TestCase.

Thanks uberj@ for the report and lolek09 for the patch.
Removed noise from pre_syncdb signal tests

Only make assertions that actually test the functionality of the
change and not unrelated pieces.
Fixed #17648 -- Add `for_concrete_model` to `GenericForeignKey`.

Allows a `GenericForeignKey` to reference proxy models. The default
for `for_concrete_model` is `True` to keep backwards compatibility.

Also added the analog `for_concrete_model` kwarg to
`generic_inlineformset_factory` to provide an API at the form level.
Fixed #19607 - prefetch_related crash

Thanks to av@rdf.ru and flarno11@yahoo.de for the report.
Optimisation in prefetch_related_objects
Link to active fork for ODBC backend

It took me quite some time to find if and where the ODBC backend was maintained.
I found (on djangoproject.com):
http://code.google.com/p/django-pyodbc/ (last commit about 3 years ago)
then:
https://github.com/avidal/django-pyodbc avidal fork.
then:
https://github.com/aurorasoftware/django-pyodbc/ aurorasoftware version which has avidal improvements merged.

Avidals version now links to https://github.com/aurorasoftware/django-pyodbc/ which is also the version installed through PIP.
Update link to jQuery Cookie plugin site
Updated my bio
Merge pull request #1209 from tax/master

Updated link to active project for ODBC backend