GUACAMOLE-1298: Automatically generate LICENSE and NOTICE files.

doc/licenses/aopalliance-1.0/LICENSE

@@ -0,0 +1,4 @@
+From http://aopalliance.sourceforge.net/:
+
+    LICENCE: all the source code provided by AOP Alliance is Public Domain.
+

doc/licenses/aopalliance-1.0/README

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+AOP Alliance (http://aopalliance.sourceforge.net/)
+--------------------------------------------------
+
+    Version: 1.0
+    From: 'AOP Alliance' (http://aopalliance.sourceforge.net/members.html)
+    License(s):
+        Public Domain (bundled/aopalliance-1.0/LICENSE)
+

doc/licenses/aopalliance-1.0/maven-coordinates.txt

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+aopalliance:aopalliance:jar:1.0