tox.ini: Add py34

Useful for testing with the new Python 3.4 alpha versions.
test cases to reproduce #1246
support high-order characters in UnencryptedCookieSessionFactoryConfig secrets
Merge branch 'fix.1246' into 1.5-branch
fix regression with code expecting secrets to be encoded with latin-1
Hand RepozeWho1AuthenticationPolicy.remember kwargs to repoze.who #1249

Documentation for pyramid.security.remember supports keyword arguments
to hand over to the authentication policy. However, when using
RepozeWho1AuthenticationPolicy, all of the kw were dropped in remember.

It is my understanding that with repoze.who, additional configuration
parameters shall be stored in the identity dictionary. In our case,
setting the max_age parameter to the authtkt identifier, would be done
using an identity {'repoze.who.userid':principal, 'max_age': 23}.

It seems sensible just to hand over kw through the identity dictionary
and all users to specify max_age or other parameters such as userdata.
Merge pull request #1255 from rbu/repozewho1-remember-kwargs-1.5

Hand RepozeWho1AuthenticationPolicy.remember kwargs to repoze.who (1.5) #1249
Add integration tests for Unicode in URL
Remove 'b'; WebTest or WebOb doesn't like Python 3 bytes for URLs
Convert from u prefix to byte string and decode

because the u prefix is not supported in Python 3.2
test_unicode_in_url_404: Add comment to clarify why request_path_unicode
is expected to be in res.txt
Merge pull request #1276 from stevepiercy/master

Minor rendering, syntax, and grammar fixes
Merge pull request #1269 from msabramo/test_unicode_in_url

Add integration tests for Unicode in URL
Remove whitespace before the open parenthesis
Update hello_world.rst

Modify 'Extra Credit' to reflect code example
Merge pull request #1279 from dhaaker/patch-1

Remove whitespace before the open parenthesis
Merge pull request #1280 from dhaaker/patch-2

Update hello_world.rst
Merge pull request #1188 from msabramo/patch-4

tox.ini: Add py34
broadcast 3.4 support
Merge branch 'master' of github.com:Pylons/pyramid