Permissions and password on wp.cap

Changed the permission setting for .htaccess and wp-content/uploads to
something a bit stricter.  775/664 instead of 777/666

Commented out the auto generated password task to make it hard coded
into the relevant config file.  I got sick of forgetting passwords on
local dev sites.
Add wp_pass setting to deploy.rb
Removed WordPress as a submodule

The prepare.sh script adds the lastest branch anyway, and I always run
the prepare script, so why add WordPress only to delete it straight
ayway.  Unless I'm missing something!
Change WP branch to 4.0 and add as submodule
Amend readme file
Update production.rb

Added possible extra settings:
Providing a password for shh access
Added possibility to specify temp dir if user is jailed to home
Merge branch 'patch-1' of github.com:joenesy/wp-deploy into development
updated staging.rb to provide extra ssh options
Changes to deploy config files
split uploads task into push/pull
updated readme to reflect changes to uploads task
Merge branch 'master' into wpranger