-fix some menus
-fixed bug in out transition curves
-detect and remove file:/// in collada
-remove multiscript for now
-remove dependencies on mouse in OS, moved to Input
-avoid fscache from screwing up (fix might make it slower, but it works)
-funcref was missing, it's there now
In the `parse_tag` method of the `class ResourceInteractiveLoaderXML`,
the class responsible of loading the editor_settings.xml file, the
properties' values are loaded directly into an `String` object but the
file contents are always UTF-8, which leads to garbage in the XML file
when saved.
This patch reads the properties' values in a `CharString` and translate
them to UTF-8.
