Usage improvements & bug fixes

`note` command:
  - Add flag title as option to define note title

`note show` command:
  - Fix bug when no note is found

`note edit` command:
  - Fix bug when no note is found

`note delete` command:
  - Fix bug when no note is found
  - Ask for confirmation to delete note
  - Add flag option yes to delete command

cmd/deleteNote.go

@@ -29,6 +29,11 @@ func DeleteNote(context *cli.Context) {
 	noteToFind := strings.Join(context.Args()[:], " ")
 
 	notesFound := fuzzy.RankFind(noteToFind, notesNames)
+
+	if len(notesFound) == 0 {
+		os.Exit(1)
+	}
+
 	noteFound := notesFound[0].Target
 
 	confirmMessage := fmt.Sprintf("Do you want to delete the note %s ?", noteFound)

cmd/editNote.go

@@ -30,6 +30,11 @@ func EditNote(context *cli.Context) {
 	noteToFind := strings.Join(context.Args()[:], " ")
 
 	notesFound := fuzzy.RankFind(noteToFind, notesNames)
+
+	if len(notesFound) == 0 {
+		os.Exit(1)
+	}
+
 	noteFound := notesFound[0].Target
 
 	err = editor.File(viper.GetString("editor"), filepath.Join(notePath, noteFound))

cmd/showNote.go

@@ -29,6 +29,11 @@ func ShowNote(context *cli.Context) {
 	noteToFind := strings.Join(context.Args()[:], " ")
 
 	notesFound := fuzzy.RankFind(noteToFind, notesNames)
+
+	if len(notesFound) == 0 {
+		os.Exit(1)
+	}
+
 	noteFound := notesFound[0].Target
 
 	noteContent, err := ioutil.ReadFile(filepath.Join(notePath, noteFound))

main.go

@@ -32,7 +32,7 @@ func main() {
 
 	app.Name = "Note"
 
-	app.Version = "0.0.4"
+	app.Version = "0.0.5"
 
 	app.Usage = "Quick and easy Command-line tool for taking notes"
 	app.UsageText = "note [just type a text] [or command] [with command options]"