Fix Makefile to include subfolders for javac

Also updated Input to fix string/double parsing

.gitignore

@@ -31,4 +31,5 @@ bin/
 .class
 /src/*.jar
 /.idea
-hello_world.froj
+hello_world.froj
+testfile.froj

src/Makefile

@@ -6,13 +6,15 @@ all: run
 
 compile:
 	rm -f $(FILE_PATH)/*.class
-	javac -d ./ $(FILE_PATH)/*.java
-	jar -cfm $(FILE_NAME_JAR) ./META-INF/MANIFEST.MF $(FILE_PATH)/*.class
+	javac -d ./ $(FILE_PATH)/*.java $(FILE_PATH)/**/*.java
+	jar -cfm $(FILE_NAME_JAR) ./META-INF/MANIFEST.MF $(FILE_PATH)/*.class $(FILE_PATH)/**/*.class
 	rm -f $(FILE_PATH)/*.class
+	rm -f $(FILE_PATH)/*/*.class
 
 clean:
 	rm -f $(FILE_PATH)/*.class
 	rm -f ./$(FILE_NAME_JAR)
+	rm -f $(FILE_PATH)/**/*.class
 
 javac:
 	javac -d ./ $(FILE_PATH)/*.java

src/com/jsaasta/froj/stdlib/Input.java

@@ -23,7 +23,12 @@ public class Input implements FrojCallable {
         System.out.print("> ");
         try {
             String line = reader.readLine();
-            return line;
+            try {
+                return Double.parseDouble(line);
+            } catch(NumberFormatException ex) {
+                return line;
+            }
+
         } catch (IOException e) {
             throw new RuntimeException(e);
         }