Fixed some bugs related to saving conf files

config/config.go

@@ -3,6 +3,7 @@ package config
 import "io"
 import "os"
 import "fmt"
+import "sort"
 import "bufio"
 import "strings"
 import "strconv"
@@ -267,18 +268,27 @@ func (config *Config) Save (name string) (err error) {
 
 // SaveTo writes the configuration data to the specified io.Writer.
 func (config *Config) SaveTo (writer io.Writer) (err error) {
-	for key, value := range config.Parameters {
+	keys := make([]string, len(config.Parameters))
+	index := 0
+	for key, _ := range config.Parameters {
+		keys[index] = key
+		index ++
+	}
+	sort.Strings(keys)
+
+	for _, key := range keys {
+		value := config.Parameters[key]
 		switch value.(type) {
 		case string:
 			fmt.Fprintf(writer,"%s: %s\n", key, value.(string))
 			
 		case color.RGBA:
 			colorValue := value.(color.RGBA)
-			colorInt := uint64 (
-				colorValue.R << 16 |
-				colorValue.G << 8  |
-				colorValue.B)
-			fmt.Fprintf(writer,"%s: #%x\n", key, colorInt)
+			colorInt := 
+				uint64(colorValue.R) << 16 |
+				uint64(colorValue.G) << 8  |
+				uint64(colorValue.B)
+			fmt.Fprintf(writer,"%s: #%06x\n", key, colorInt)
 			
 		case int:
 			fmt.Fprintf(writer,"%s: %d\n", key, value.(int))