fixed install scripts

ps-config/install_pocketsphinx_conf.sh

 #!/bin/sh
-if [ $1 ]
- then installdir=$1
- else installdir="/vol/robocup/2013/share/SpeechRec/"
+
+set -e
+
+BASEDIR=$(dirname $(readlink -f $0))
+cd ${BASEDIR}
+
+if [ ! -n "$prefix" ]; then
+        echo "Environment variable \"\$prefix\" must be set!"
+        exit 1
 fi
-mkdir -p $installdir/psConfig
+
+mkdir -p ${prefix}/share/SpeechRec/psConfig
 
 for i in `ls` 
 do
   if [ -d $i ]
-    then cp -r $i $installdir/psConfig
+    then cp -r $i ${prefix}/share/SpeechRec/psConfig
   fi
 done
 

ps-grammar/install_pocketsphinx.sh

 #!/bin/sh
-if [ $1 ]
- then installdir=$1
- else installdir="/vol/robocup/2013/share/SpeechRec/"
+set -e
+
+BASEDIR=$(dirname $(readlink -f $0))
+cd ${BASEDIR}
+
+if [ ! -n "$prefix" ]; then
+        echo "Environment variable \"\$prefix\" must be set!"
+        exit 1
 fi
-mkdir -p $installdir/psGrammar
+
+mkdir -p ${prefix}/share/SpeechRec/psConfig
 
 for i in `ls` 
 do
   if [ -d $i ]
-    then cp -r $i $installdir/psGrammar
+    then cp -r $i ${prefix}/share/SpeechRec/psConfig
   fi
 done