SMACK-286 Made ProviderManager much more configurable.

Separated the reading of provider files from the ProviderManager.  Manager now only manages.  Added ability to add collections of providers to the manager via a ProviderLoader, of which there is one default implementation which loads from the default file format.  Now provider files can be programmatically added at any time.  Also updated the configuration abilities so that a provider file can also be set via VM arg, as well as the smack configuration itself. Introduced Java Util Logging as well.

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/branches/smack_3_4_0@13861 b35dd754-fafc-0310-a699-88a17e54d16e

source/org/jivesoftware/smack/provider/AbstractProviderInfo.java

@@ -0,0 +1,26 @@
+package org.jivesoftware.smack.provider;
+
+
+abstract class AbstractProviderInfo {
+    private String element;
+    private String ns;
+    private Object provider;
+    
+    AbstractProviderInfo(String elementName, String namespace, Object iqOrExtProvider) {
+        element = elementName;
+        ns = namespace;
+        provider = iqOrExtProvider;
+    }
+    
+    public String getElementName() {
+        return element;
+    }
+
+    public String getNamespace() {
+        return ns;
+    }
+    
+    Object getProvider() {
+        return provider;
+    }
+}