Update README.md
Primitive cache for images was removed
Packages were renamed to org.wdbuilder...
Servlet descriptions were movd to annotations
Servlet descriptions were moved to annotations
ImageGenerator was splitted into pair of subclasses
RenderContext class for rendering context incapsulation
Selected block key was incapsulated into the ApplicationState
link sockets comparison bug was fixed
migration to guava related collections started
before merge back to master