[dokka:master]
8 new commits by Dmitry Jemerov:
7fb4d94: rewrite propagation of extension functions to subclasses to handle shadowing and applicability more correctly - Dmitry Jemerov
931a37d: include extension function in the list of extensions for a class if the class is an upper bound of the receiver type parameter - Dmitry Jemerov
340816d: delete a bit of dead code - Dmitry Jemerov
0d3c915: don't generate "Extensions for external classes" pages for classes which are part of the documented module but reside in another package - Dmitry Jemerov
057c331: support for formatting text into existing StringBuilder - Dmitry Jemerov
b7db2d3: move some more logic into PageBuilder class - Dmitry Jemerov
299b5c1: line breaks between parameters - Dmitry Jemerov
628356d: link to JDK classes (KT-10452) - Dmitry Jemerov