feat(deploy): use traditional rsync command

BREAKING CHANGE: Now you have to define your SSH user, port, and host in `_deploy.yml` in order to use `rsync` deployment. It no longer uses predefined hosts in your SSH config file, however this should work for most CI/DI services.

Gruntfile.coffee

@@ -318,7 +318,7 @@ module.exports = (grunt) ->
 
       # Direct sync compiled static files to remote server
       sync_server:
-        command: "rsync -avz --delete --progress <%= config.deploy.ignore_files %> <%= config.dist %>/ <%= config.deploy.sftp.host %>:<%= config.deploy.sftp.dest %> > rsync-sftp.log"
+        command: "rsync -avz -e 'ssh -p <%= config.deploy.sftp.port %>' --delete --progress <%= config.deploy.ignore_files %> <%= config.dist %>/ <%= config.deploy.sftp.user %>@<%= config.deploy.sftp.host %>:<%= config.deploy.sftp.dest %> > rsync-sftp.log"
 
       # Copy compiled static files to local directory for further post-process
       sync_local:

_deploy.yml

@@ -6,7 +6,9 @@
 ignore_files:   --exclude=lab
 
 sftp:
-  host: caladbolg
+  user: rsync
+  port: 2233
+  host: caladbolg.sparanoid.com
   dest: /srv/www/sparanoid.com/public_html
 
 s3_website: