Patch generic delta config

- Addressing issue mentioned at #1699

Marlin/example_configurations/delta/kossel_mini/Configuration.h

@@ -107,7 +107,6 @@ Here are some standard links for getting your machine calibrated:
 // Horizontal offset of the universal joints on the carriages.
 #define DELTA_CARRIAGE_OFFSET 19.5 // mm
 
-
 // Horizontal distance bridged by diagonal push rods when effector is centered.
 #define DELTA_RADIUS (DELTA_SMOOTH_ROD_OFFSET-DELTA_EFFECTOR_OFFSET-DELTA_CARRIAGE_OFFSET)
 
@@ -531,8 +530,8 @@ const bool Z_MAX_ENDSTOP_INVERTING = false; // set to true to invert the logic o
 #define DEFAULT_MAX_FEEDRATE          {500, 500, 500, 25}    // (mm/sec)
 #define DEFAULT_MAX_ACCELERATION      {9000,9000,9000,10000}    // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for skeinforge 40+, for older versions raise them a lot.
 
-#define DEFAULT_ACCELERATION          3000    // X, Y, Z and E max acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION  3000   // X, Y, Z and E max acceleration in mm/s^2 for retracts
+#define DEFAULT_ACCELERATION          3000    // X, Y, Z and E acceleration in mm/s^2 for printing moves
+#define DEFAULT_RETRACT_ACCELERATION  3000   // E acceleration in mm/s^2 for retracts
 #define DEFAULT_TRAVEL_ACCELERATION   3000    // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
 
 // Offset of the extruders (uncomment if using more than one and relying on firmware to position when changing).