Fixed versions of Binutils, GDB and Insight in compiler building scripts.

tools/install-gnuarm4.sh

@@ -1,13 +1,13 @@
 #!/bin/bash
 
 # Some things for you to configure
-BINUTILS_VER="2.19.1"
+BINUTILS_VER="2.19.1a"
 GCC_VER="4.3.3"
-GDB_VER="6.8"
+GDB_VER="6.8a"
 NEWLIB_VER="1.17.0"
 GMP_VER="4.2.4"
 MPFR_VER="2.4.2"
-INSIGHT_VER="6.8"
+INSIGHT_VER="6.8a"
 
 # Where you want to install the tools
 if [ "${1}" = "" ]; then