Merge branch 'f_misc1'

* f_misc1:
  Patch for the constantLine function
  Error with different format of "from" and "until"
Merge branch 'f_callback'

* f_callback:
  Use of function sort instead of sorted
  Add a function "callbackToNode"
Revert "Add support for kwargs in function calls"

This reverts commit b776c6d42177c09e29fb191a2803300a79922608.