FEATURE #1442: add uploaded file detail

This commit adds functionality for editing keywords and description of selected file. This commit also includes JS library for syntax highlighting (https://highlighjs.org)

resources/views/admin/fileManager/editForm.blade.php

@@ -0,0 +1,41 @@
+@if (session('success'))
+    <div data-alert class="callout success">
+        <strong>{{ session('success') }}</strong>
+    </div>
+@endif
+
+@if (session('error'))
+    <div data-alert class="callout alert">
+        <strong>{{ session('error') }}</strong>
+    </div>
+@endif
+
+
+<form method="POST" action="{{route('upload.postEdit', ['id' => $file->id])}}" enctype="multipart/form-data">
+    {!! csrf_field() !!}
+
+    <label>
+        @lang('admin/fileManager.keywords')
+
+        <input type="text" name="keywords" id="keywords" value="{{$file->keywords}}"/>
+
+        @if (isset($errors) && $errors->has('keywords'))
+            <div class="callout alert">
+                {{ $errors->first('keywords') }}
+            </div>
+        @endif
+    </label>
+
+    <label>
+        @lang('admin/fileManager.description')
+
+        <textarea rows="3" name="description" id="description">{{$file->description}}</textarea>
+    </label>
+
+    <button type="submit" class="button primary">@lang('admin/fileManager.editButton')</button>
+    <a href="{{route('upload.delete', ['id' => $file->id])}}" class="button text-center confirm alert pull-right" title="@lang('admin/fileManager.delete')">
+        <i class="fa fa-remove"></i>
+    </a>
+</form>
+
+