Merge pull request #50 from PutmanMedia/pulls/redirect

Fixed login link redirection in comments
ENHANCEMENT: Add use gravatar flag, but default to false to maintain current non gravatar functionality
ENHANCEMENT: Added gravatar method to get the URL for the gravatar from the email address submitted with the comment
ENHANCEMENT: Show gravatar if it is enabled in the commenting configuration
ENHANCEMENT: Added gravatar configuration
ENHANCEMENT: Enabled change of gravatar icon size via configuration
ENHANCEMENT: Added gravatar size to the configuration options
Merge pull request #52 from gordonbanderson/ISSUE8

Addition of Gravatars
API Removed ajax comment submission

The JS logic didn't account for edge cases like scrolling
to the inserted comment, or attaching the comment in the right sorting logic,
on the right pagination page. It also doesn't show any "loading" indication,
so is bad usability for the majority of users. A standard form submission
does the same job better in this case. Note that this doesn't affect
the ability to moderate/delete comments via ajax.

Replaced 'use_ajax_commenting' with 'include_js',
since its important for behaviour other than comment submission itself,
e.g. showing previews (doesn't work without JS)