[jdt-ui-dev] Extract Interface refactoring released

["Adam Kiezun" <adam.kiezun@xxxxxxx>]

i just released the first cut of Extract Interface refactoring.
it has some limitations for now but should behave reasonably.
it's enabled on classes and compilation units

it offers an option to change references to the class into references to the new interface (where possible).

go and have a look
cheers
a.