Install puppetlabs/apt from GitHub

This brings in the following changes which I have deemed to be useful:

  - [[puppetlabs/puppetlabs-apt#604 | #604: Fix version check on 16.04]]
  - [[puppetlabs/puppetlabs-apt#605 | #605: Install `software-properties-common` for `xenial`]]

home/config/sublime-text-3/Packages/User/Preferences.sublime-settings

@@ -23,7 +23,7 @@
 	"fade_fold_buttons": false,
 	"find_selected_text": true,
 	"fold_buttons": true,
-	"font_size": 15,
+	"font_size": 20,
 	"gutter": true,
 	"highlight_line": true,
 	"highlight_modified_tabs": true,

puppet/Puppetfile

@@ -1,6 +1,6 @@
 moduledir 'ext_modules'
 
-mod 'puppetlabs/apt', '2.2.2'
+mod 'puppetlabs/apt', :git => 'https://github.com/puppetlabs/puppetlabs-apt'
 mod 'puppetlabs/git', '0.4.0'
 mod 'jgazeley/lm_sensors', '0.2.1'
 mod 'puppetlabs/mysql', '3.7.0'