Changes to support the Playground filters
updated managed bean to use the same CredStore for all the endpoint
beans. Changed the name of DB store to CredStoreDB. And Added new
Endpoint classes for Twitter and Dropbox.
Add a logger to ClientService, add better diagnostics to
ClientServicesException and add new protected methods so response
handler can be configured for error and success
Merge pull request #353 from markewallace/ClientServiceLogger

Add a logger to ClientService, add better diagnostics to
Changes for the playground - WARN: need an updated Bazaar!
Merge pull request #354 from priand/playground

Playground
review comments .. removed overriden methods.
Merge branch 'master' into ManagedBeanChanges
show invalid credentials message
Merge pull request #352 from VimalDhupar/managedBeanChanges

updated managed bean to use the same CredStore for all the endpoint
Merge pull request #356 from swatisingh10/BasicAuthFix

show invalid credentials message