some code cleaning

src/main/java/fr/soleil/bensikin/data/context/manager/XMLContextManagerImpl.java

@@ -174,7 +174,7 @@ public class XMLContextManagerImpl extends XMLDataManager<Context, Context> impl
 
         String path = VCProperties.get(ContextData.PATH_PROPERTY_XML_TAG);
         String isModified_s = VCProperties.get(ContextData.IS_MODIFIED_PROPERTY_XML_TAG);
-        boolean isModified = GUIUtilities.StringToBoolean(isModified_s);
+        boolean isModified = GUIUtilities.stringToBoolean(isModified_s);
 
         if (creationDate_s != null) {
             Date creationDate = Date.valueOf(creationDate_s);

src/main/java/fr/soleil/bensikin/data/snapshot/manager/SnapshotXMLHelper.java

@@ -277,7 +277,7 @@ public class SnapshotXMLHelper {
         String comment_s = VCProperties.get(SnapshotData.COMMENT_PROPERTY_XML_TAG);
         String path_s = VCProperties.get(SnapshotData.PATH_PROPERTY_XML_TAG);
         String isModified_s = VCProperties.get(SnapshotData.IS_MODIFIED_PROPERTY_XML_TAG);
-        boolean isModified = GUIUtilities.StringToBoolean(isModified_s);
+        boolean isModified = GUIUtilities.stringToBoolean(isModified_s);
         if (time_s != null) {
             Timestamp time = Timestamp.valueOf(time_s);
             viewConfData.setTime(time);