SCRIPT: add add_script_search_dir cmd

Add a add_script_search_dir cmd so that adding search
dir's can be added to cfg scripts.

Signed-off-by: Spencer Oliver <ntfreak@users.sourceforge.net>

NEWS

@@ -16,6 +16,11 @@ JTAG Layer:
 Boundary Scan:
 
 Target Layer:
+	MIPS:
+		- "ejtag_srst" variant removed. The same functionality is
+		  obtained by using "reset_config none".
+		- added PIC32MX software reset support, this means srst is not
+		  required to be connected anymore.
 
 Flash Layer:
 	New "stellaris recover" command, implements the procedure
@@ -23,12 +28,15 @@ Flash Layer:
 		state to the factory defaults, including erasing
 		the flash and its protection bits, and possibly
 		re-enabling hardware debugging).
-
+	PIC32MX now uses algorithm for flash programming, this
+		has increased the performance by approx 96%.
 
 Board, Target, and Interface Configuration Scripts:
 	Support IAR LPC1768 kickstart board (by Olimex)
 
 Core Jim/TCL Scripting:
+	New "add_script_search_dir" command, behaviour is the same
+		as the "-s" cmd line option.
 
 Documentation: