security: - added basic in-memory authentication based on spring http auto-config; - added .jsp pages for successful/failed logins; - enabled spring security in web.xml
security/config: moved spring security config from rest-services-config to security-context
security (advanced). First steps to advanced user authentication (against the database): - modified User entity and associated services to allow richer password handling; - added initial password-reset functionality (not completed yet); - added password-encoding support (spring-based) and associated helpers; - modified sql and soapUI scripts to support above changes;