Wally Shortcuts

When system tray icon is not available (i.e., with WindowMaker, Blackbox and FVWM), Wally can be controlled via global shortcuts.

Here's the map:

CTRL + Shift + A -> About window
CTRL + Shift + S -> Show settings window
CTRL + Shift + N -> Next picture
CTRL + Shift + Q -> Quit
CTRL + Shift + D -> Save current image
CTRL + Shift + P -> Play/Pause
CTRL + Shift + I -> Get EXIF Info
CTRL + Shift + H -> History
CTRL + Shift + W -> Explore image source
