Ceylondoc: change style of declaration links and use Tree.DocLink #1301
#1335
model loader: use the type parameter count according to annotations if any (ceylon/ceylon.language#320)

This is required for subtypes of Callable where the java class TP count differs from the annotation TP count
Extended the "info" tool a bit (basically to test ceylon/ceylon-module-resolver#78). It now shows details only when given full module/version. It shows versions when given a module only. It shows module names when given something like "partialname*" and it does a full blown search when given "*search string*".