Clarify some of the password reset docs

Thanks milosu for the report and the initial patch.

Fixed #18840 - Added a mentioned of the upload_to parameter to the ModelForm example in file uploads.

Unlike other model fields, the newly introduced (1.4)
GenericIPAddressField did not accept verbose_name and name as the
first positional arguments. This commit fixes it.
Thanks Dan McGee for the report and the patch.

Thanks Preston Holmes for the patch.

Thanks chromano for the draft patch.

Thanks Idan Gazit for the patch.

Fixed #18642 - Added a note suggesting the use of render() rather than render_to_response() if you need RequestContext in your template.

Some of the wording was copied from the change password section. Updated
the text to clarify that the we are talking about password resets.

Fixed #16309 - Made ModelAdmin.list_filter versionchanged annotations more specific to the sections that changed; thanks akaihola for the suggestion and patch.

fix documentation testing of Selenium WebDriverWait 

Indexing bytes is the problem not slicing.

Fix comment typo

Thanks ferdonline for the initial patch and Karen Tracey for the
related post on django-users.

We can do that now that cleaned_data is guaranteed to be
present. Related to [121fd109].
Thanks Simon Charette for his work on the ticket.

smart_str/smart_text should only be used when a potential lazy
string should be preserved in the result of the function call.

The user module and the execfile function were removed in Python 3.

Thanks Linovia for the report.

Thanks Alexey Boriskin for his help on the patch.

In all those occurrences, we didn't care about preserving the
lazy status of the strings, but we really wanted to obtain a
real bytestring.

Thanks to Claude Huchet and Tomáš Ehrlich for the patch.

Thanks to bnomis for the report and yajogo for the initial patch.

Code comment fix.

According to the documentation of Selenium, WebDriverWait class has no timeout parameter and using the code fails.

http://selenium.googlecode.com/svn/trunk/docs/api/java/org/openqa/selenium/support/ui/FluentWait.html#until%28com.google.common.base.Predicate%29