GUACAMOLE-1905: Update Java dependencies to latest compatible versions.

doc/licenses/logback-1.3.14/LICENSE.txt

@@ -1,17 +0,0 @@
-Logback LICENSE
----------------
-
-Logback: the reliable, generic, fast and flexible logging framework.
-Copyright (C) 1999-2015, QOS.ch. All rights reserved.
-
-This program and the accompanying materials are dual-licensed under
-either the terms of the Eclipse Public License v1.0 as published by
-the Eclipse Foundation
- 
-  or (per the licensee's choosing)
- 
-under the terms of the GNU Lesser General Public License version 2.1
-as published by the Free Software Foundation.
-
-** ECLIPSE PUBLIC LICENSE v1.0 CHOSEN. **
-

doc/licenses/logback-1.3.14/README

@@ -1,8 +0,0 @@
-Logback (http://logback.qos.ch/)
---------------------------------
-
-    Version: 1.3.14
-    From: 'QOS.ch Sàrl' (http://qos.ch/)
-    License(s):
-        EPL v1.0 (bundled/logback-1.3.14/LICENSE.txt)
-

doc/licenses/logback-1.3.14/dep-coordinates.txt

@@ -1,2 +0,0 @@
-ch.qos.logback:logback-classic:jar:1.3.14
-ch.qos.logback:logback-core:jar:1.3.14