input and output folders now automatically created

opale_to_lexique/README.md

 # Converter opale_to_lexique
 
 In order to use this converter, follow those steps :
-0. Create an input and an output folder
 1. Copy your Opale file(s) (.scar or .zip) into the input directory.
 2. Execute the run that correspond to your OS.
 3. You will find the result into the output directory.The name of the output files depends of the hour it was processed.

opale_to_lexique/opale_to_lexique.ant

@@ -15,8 +15,16 @@
 			</classpath>
 	</taskdef>
 
-	
-	<target name="init">
+	<target name="rmOutputDir">
+	    <if>
+	        <available file="${OutputPath}" type="dir"/>
+	        <then>
+	            <delete dir="${OutputPath}"/>
+	        </then>
+	    </if>
+	</target>	
+
+	<target name="init" depends="rmOutputDir">
 		<mkdir dir="${outdir}"/>
 		<chmod perm="777" dir="${outdir}"></chmod>
 		<mkdir dir="${srcdir}"/>