Use relative path to `find` to avoid platform difference issues

We set the $PATH for cronjobs properly, so it will use `find` no matter
where it is by not using an absolute path.
Clean up username & pass generation script

Use $() instead of ``
Ensure all variables are wrapped in double quotes to prevent word splitting
Update path to upload users' home folder to reflect current location
Version bump to v1.3.0
Fix name of script that has been refactored and renamed
Version bump to v1.3.1
Merge branch 'master' into hai/script-with-user-template

Conflicts:
	files/default/show_uploads.sh
	recipes/scripts.rb
	templates/default/process_uploads.erb