Log Message:
Update gnome-icon-theme-symbolic to 3.8.3

Changes:

3.8.2.2
  - unbreak shell's heaphone status

3.8.2.1
  - fix missing .pc.in again :(

3.8.2
  - repeat-signle
  - sync with gnome-icon-theme for notifications
  - make status icons more legible (bug #698700)
  - muted (bug #698700)
  - window control icons (bug #697930)
  - screen rotation status (bug #698257)
  - headset vs headphones icon

3.8.0.1
  - fix the broken tarball (bug #696634)

3.8.0
  - view-more wasn't clear when used
  - goa-panel sizing
  - semi-starred status (bug #689098)

3.7.91
  - system failwhale icon
  - software app icon

3.7.5
  - new settings panel icons

3.7.4.1
  - really include .pc file

3.7.4
  - accessories-disctionary
  - whitespace on fullscreen
  - view-more
  - wireless-hotspot
  - tweaks to multidisk
  - installs a .pc file
  - search wrapped status
  - privacy settings
  - media-flash, media-floppy