Changed id property type.
Ignoring attributes with null value.
Started work on XML parsing of IDM configuration
XML parsing of IDM configuration
Added unit test for minimal IDM config - picketlink-minimal.xml
Added XMLBasedIdentityManagerProvider, which will be used to build IdentityManager from XML config
First implementation of XMLIdentityManagerProviderTestCase. For now it works only for string based properties of StoreConfiguration
XML parsing for non-primitive properties
Move XMLBasedIdentityManagerProvider to new package
Adding resolvers mechanism to resolve property values of non-primitive types from XML configuration