git: Ignore Krita .kra backup files
i3: Run the ~/.i3/startup.local file, if it exists
i3: Add hotkeys to launch common apps

* mod+shift+c: Chromium
* mod+shift+f: File browser (Thunar)
i3: Remove numbered workspaces - no longer used
i3: rename workspace using zenity, not i3-input
i3: tidy up app-specific stuff
i3: Use custom zenity i3-input script

i3-input does not let you paste from clipboard! For shame.
i3: 14pt font
i3: Force Steam to a specific workspace