Add keyboard shortcut to run application.

A common feature in several desktop environments is the ability to bring up
a "run application" dialog via a keyboard shortcut (frequently Mod1+F2).  This
feature has been available to Window Maker users only through the root menu.

This patch adds the ability for a user to set up a keyboard shortcut to
accomplish this, either via WPrefs or by editing ~/GNUstep/Defaults/WindowMaker,
e.g., with
 RunKey = "Mod1+F2";

Code from the execCommand function in rootmenu.c has been copied almost directly
into the handleKeyPress function in misc.c to accomplish this.
wrlib: add a function to draw rectangles

it appears that such kind of function was missing from the lib
Restore wprogressindicator.c declarations to WINGs/WINGs.h

In commit b4cb488, wprogressindicator.c was removed.  It was restored in commit
d435ea7, but the corresponding declarations in WINGs/WINGs.h were not.  This
patch fixes this oversight.
WPrefs: WINGs font configuration

This patch allows users to edit the two fonts (SystemFont and BoldSystemFont)
used in WINGs widgets using WPrefs.  Note that changes will not take effect for
WINGs applications which are currently running.
WINGs: Option for decimal or hexadecimal RGB colors

The RGB panel of the WINGs color panel lists the red, green, and blue values as
base 10 numbers.  However, hexadecimal numbers are very common when dealing with
RGB colors.  This patch adds two radio buttons at the bottom of the RGB panel
to allow users to choose their preferred number system.

For version 2 of the patch:

Based on Cristophe's suggestions regarding the new decimal/hexadecimal RGB color
feature introduced in commit 83d8ad6, this patch changes rgbState from an int
to an enum, converts some if statements to switches, and changes from atoi to
strtol for the base 10 string conversion.

In addition, the "hexadecimal" text was too wide for the default size of its
radio button for some fonts, so both radio buttons are now resized to fit the
width of the panel.
WPrefs: Set workspace background

This patch enables users to set the workspace background (WorkspaceBack) in the
Appearance Preferences section of WPrefs.  It appears as a new item in the
popup menu in the Texture tab, in the list of textures below, and a preview
appears in the background of the preview panel on the left.
util/wmiv: an image viewer using wrlib

This patch brings wmiv, a fast image viewer using wrlib.
clean wDockFindFreeSlot function

it appears that a sx var is set but not used
Merge branch 'next' into ppa
next ppa release - includes wmiv and various new features features