Bug Fix: prepend not correct on prioritized tasks

Check for priority, if one exists, remove, prepend and add back.
If priority doesn't exist just runs the normal prepend functionality.

tests/t1400-prepend.sh

@@ -0,0 +1,55 @@
+#!/bin/sh
+
+test_description='basic prepend functionality
+'
+. ./test-lib.sh
+
+test_todo_session 'prepend usage' <<EOF
+>>> todo.sh prepend B B
+usage: todo.sh prepend ITEM# "TEXT TO PREPEND"
+=== 1
+EOF
+
+cat > todo.txt <<EOF
+(B) smell the uppercase Roses +flowers @outside
+notice the sunflowers
+stop
+EOF
+test_todo_session 'basic prepend' <<EOF
+>>> todo.sh list
+1 (B) smell the uppercase Roses +flowers @outside
+2 notice the sunflowers
+3 stop
+--
+TODO: 3 of 3 tasks shown from $HOME/todo.txt
+
+>>> todo.sh -p list
+1 (B) smell the uppercase Roses +flowers @outside
+2 notice the sunflowers
+3 stop
+--
+TODO: 3 of 3 tasks shown from $HOME/todo.txt
+
+>>> todo.sh prepend 2 test
+2: test notice the sunflowers
+
+>>> todo.sh -p list
+1 (B) smell the uppercase Roses +flowers @outside
+3 stop
+2 test notice the sunflowers
+--
+TODO: 3 of 3 tasks shown from $HOME/todo.txt
+
+>>> todo.sh prepend 1 test
+1: (B) test smell the uppercase Roses +flowers @outside
+
+>>> todo.sh -p list
+1 (B) test smell the uppercase Roses +flowers @outside
+3 stop
+2 test notice the sunflowers
+--
+TODO: 3 of 3 tasks shown from $HOME/todo.txt
+
+EOF
+
+test_done

todo.sh

@@ -819,12 +819,28 @@ case $action in
         input=$*
     fi
 		
+		# Test for then set priority
+		if [ `sed "$item!d" "$TODO_FILE"|grep -c "^(\\w)"` -eq 1 ]; then
+			priority=$(sed "$item!d" "$TODO_FILE" | awk -F '\\(|\\)' '{print $2}')
+		fi
+
+		# If priority isn't set prepend
+		if [ -z $priority ]; then 
     	if sed -i.bak $item" s|^.*|$input &|" "$TODO_FILE"; then
        	newtodo=$(sed "$item!d" "$TODO_FILE")
         [ $TODOTXT_VERBOSE -gt 0 ] && echo "$item: $newtodo"
     	else
        	echo "TODO: Error prepending task $item."
 			fi
+		# If priority is set, remove priority, prepend and add back priority
+		else
+			if sed -i.bak -e "$item s/^(.) //" -e "$item s|^.*|\($priority\) $1 &|" "$TODO_FILE"; then
+        newtodo=$(sed "$item!d" "$TODO_FILE")
+       	[ $TODOTXT_VERBOSE -gt 0 ] && echo "$item: $newtodo"
+    	else
+       	echo "TODO: Error prepending task $item."
+    	fi
+		fi
     cleanup;;
 
 "pri" | "p" )