+* merging extract and usefunction
+* caching instances of PyObject
* moving a group of elements together
* temps might be read after body in usefunction or extract
* usefunction and function returns
-* using directory children in change indicator
* extracted functions should be inserted before using class bodies
* adding "referenced later" wildcard argument to restructurings?
* importing compressed objectdb/history data?
* not applying all commenting mechanisms always in codeassist
* fixing try blocks before current line in code_assist
-* searching all files when extracting a global method?
* better tests for patchedast
* import actions with more that one phase and filtering problems
* handle long imports should work on filtered imports unconditionally?