Fixed issue where file handler would sometimes return null for existing files; Optimized LIVELOAD file handler. (#118)

* Fix #117

* bump version

* Optimized directory entry

Fixed files being added on liveload (this would cause memory issues over time).

Author: Katsute

src/main/java/com/kttdevelopment/simplehttpserver/handler/DirectoryEntry.java

@@ -14,7 +14,7 @@
  * @see FileHandler
  * @see FileEntry
  * @since 02.00.00
- * @version 4.0.0
+ * @version 4.2.0
  * @author Ktt Development
  */
 @SuppressWarnings("SpellCheckingInspection")
@@ -170,8 +170,10 @@ public final FileEntry getFileEntry(final String path){
         final FileEntry entry = files.get(context);
         if(entry == null){ // add new entry if not already added and file exists
             final File file = getFile(path);
-            return file != null && !file.exists()
-                ? files.put(context, new FileEntry(file, adapter, loadingOption))
+            return file != null && file.exists()
+                ? loadingOption != ByteLoadingOption.LIVELOAD // only add to files if not liveload
+                    ? files.put(context, new FileEntry(file, adapter, loadingOption))
+                    : new FileEntry(file, adapter, loadingOption)
                 : null;
         }else if(!entry.getFile().exists()){ // remove entry if file no longer exists
             files.remove(context);