Linux Mint/Ubuntu: how to set Sublime Text 2 as default text editor

How to install and set Sublime Text 2 as the default text editor on Ubuntu or Linux Mint:

1. Download from http://www.sublimetext.com/
2. Unpack the downloaded file into your home directory (eg: /home/yourname/SublimeText2/)
3. Open the file /home/yourname/.local/share/applications/defaults.list (create this file if it doesn’t exist)
4. Create/edit the [Default Applications] section, with a text/plain entry for Sublime like:
   [Default Applications]
   text/plain=sublime2.desktop 
5. Create the file /home/yourname/.local/share/applications/sublime2.desktop with this in it:
   [Desktop Entry]
   Version=1.0
   Type=Application
   Name=Sublime 2
   Exec=/home/yourname/SublimeText2/sublime_text
   Terminal=false
   Categories=Accessories
   StartupNotify=true
   MimeType=text/plain; 
6. Done (you may need to logout and log back in)