Allow negative elevation input in EditPosition (#155)

Update version to V4.2.1

Author: patrovite

README.md

@@ -4,7 +4,7 @@ Course Generator is a software which can estimate your time in road running race
 
 ![Course Generator Main window](https://imgur.com/4tM7kUR.png)
 
-## Status : Version 4.2.0 (stable)
+## Status : Version 4.2.1 (stable)
 
 ## History
 I created Course Generator in 2008 for my first 100 km ultra trail. Since then, I added a lot of features and it has been used by a lot of french ultra-runner. Up to the version 3.88 it has been written in C# and now java is used in order to be cross platform (Windows, Mac OS and Linux) and multilingual.

build/course_generator.jar

@@ -446,7 +446,7 @@ private void initComponents() {
 		Utils.addComponent(panelRight, lbElevation, 0, line, 1, 1, 0, 0, 5, 0, 0, 5,
 				GridBagConstraints.BASELINE_LEADING, GridBagConstraints.BOTH);
 
-		spinElevation = new CgSpinner(0, 0, 100000, 1);
+		spinElevation = new CgSpinner(0, -1000, 100000, 1);
 		Utils.addComponent(panelRight, spinElevation, 1, line, 3, 1, 0, 0, 5, 0, 0, 5,
 				GridBagConstraints.BASELINE_LEADING, GridBagConstraints.BOTH);
 

src/course_generator/dialogs/frmEditPosition.java

@@ -164,7 +164,7 @@
 public class frmMain extends javax.swing.JFrame {
 	private static final long serialVersionUID = 6484405417503538528L;
 
-	private final static String Version = "4.2.0";
+	private final static String Version = "4.2.1";
 
 	public static boolean inEclipse = false;
 	public static CgLog log = null;

src/course_generator/frmMain.java

@@ -13,7 +13,7 @@
 # These three must be integers
 !define VERSIONMAJOR 4
 !define VERSIONMINOR 2
-!define VERSIONBUILD 0
+!define VERSIONBUILD 1
 # These will be displayed by the "Click here for support information" link in "Add/Remove Programs"
 # It is possible to use "mailto:" links in here to open the email client
 !define HELPURL "https://techandrun.com/course-generator/" # "Support Information" link
@@ -31,7 +31,7 @@ LicenseData "..\gpl-3.0.txt"
 # This will be in the installer/uninstaller's title bar
 Name "${APPNAME}"
 Icon "..\build\cg.ico"
-# outFile "Course_Generator_install_4_2_0.exe"
+# outFile "Course_Generator_install_4_2_1.exe"
 outFile "..\distrib\Course_Generator_install_${VERSIONMAJOR}_${VERSIONMINOR}_${VERSIONBUILD}.exe"
 
 !include LogicLib.nsh