Update color picker framework to latest version with drag/drop support

.gitignore

@@ -22,3 +22,5 @@ Intermediates/
 NMSSH.framework.dSYM/
 NMSSH/
 iTerm2.xcodeproj/xcuserdata/
+ColorPicker/ColorPicker.xcodeproj/project.xcworkspace/xcuserdata/
+ColorPicker/ColorPicker.xcodeproj/xcuserdata/

ColorPicker/ColorPicker.framework/Versions/A/Headers/CPKMainViewController.h

@@ -25,4 +25,7 @@
                         color:(NSColor *)color
                  alphaAllowed:(BOOL)alphaAllowed;
+// Changes the selected color.
+- (void)selectColor:(NSColor *)color;
+
 @end

ColorPicker/ColorPicker.framework/Versions/A/Headers/CPKPopover.h

@@ -8,8 +8,8 @@
  */
 @interface CPKPopover : NSPopover
-/** Reflects the final selected color. */
-@property(nonatomic, readonly) NSColor *selectedColor;
+/** Reflects the final selected color. Setter changes color in open popover. */
+@property(nonatomic) NSColor *selectedColor;
 /** Called before popover closes. */
 @property(nonatomic, copy) void (^willClose)();