Newsletters HTML editor, Modal confirmation, CDN images

- Modal confirmation replace with something better open-classifieds/openclassifieds2#963
- CDN images open-classifieds/openclassifieds2#961
- Fixes newsletters editor usage of HTML editor not BBCODE open-classifieds/openclassifieds2#981
you mean here, no? what we need to do is trust that files where properly uploaded. Then not call the S3 API. And build our self the image src. 

Example
for i=0; i<has_image;+i++
core::config('image.aws_s3_bucket').'.'.'s3.amazonaws.com/images/2014/09/24/12/name_$i.jpg

Not sure if I am clear ;)

Same with locations categories user image etc...