Support SSL when server has old certs

Bundle a certificate that we can use with SSL connections to the API.
Extend WP HTTP to allow us to add our own Curl transport.
Extend WP Curl class to create a Curl transport that supports a
specific certificate for SSL.
Add SSL support to image uploading.
Image uploading currently requires Curl - generate error message when
trying to upload an image and Curl is missing.
Ignore project files
Sort the MLS list

Make the MLS Provider drop list on the page:
http://placester.my-macbook.local/wordpress/wp-admin/admin.php?page=plac
ester_integrations
be alphabetical order by state. This should probably be done at the API
level instead.
Add listing not working when Wordpress folder is not document root
Plugin - Fatal Errors when php is less then 5.3

Prior to php 5.3 func_get_args() could not be used as a function
parameter, so put in a var instead.
Merge branch 'staging' into gsr
A bit of clean-up
Clean-up...
Slight modification to listing changes + HTTP clean-up
Handle file upload error messages from the api

Pass error messages from the api generated when uploading images though to js on the page
Unrelated to Mrnt's changes, just taking this opportunity to remove old code...
Finishing touches...