git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/branches/smack_3_4_0@13860 b35dd754-fafc-0310-a699-88a17e54d16e
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
SMACK-525 fix NPE when initConnection() fails

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/branches/smack_3_4_0@13862 b35dd754-fafc-0310-a699-88a17e54d16e
SMACK-524 Use correct block-size definition for IBB transfers

Revert IBB related changes introduced by SMACK-349 to use the correct
block size for IBB transfers.

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/branches/smack_3_4_0@13863 b35dd754-fafc-0310-a699-88a17e54d16e