fixed PY-14128 IPython Notebook: language level in cell is not updated on changing project interpreter until first edit
fixed PY-14129 IPython Notebook: disable statement seems to have no effect inspection for the cells
fixed PY-14120 IPython Notebook: can't assign to (): false positive for multiple unpacking assignment
PY-14134 IPython Notebook: Unbound local: false positive for list comprehension inside a cell
fixed PY-14104 do not save negative prompt index
fixed PY-14115 IPython Notebook: not able to attach saved in pycharm notebook: missing output_type for the cell with png plot
fixed PY-14130 IPython Notebook: slash at the end of the URL prevents cells from running
added run in-place action with shortcut
added default shortcuts for cu/copy/paste
added "add cell above" action with shortcut (ctrl + =)
added delete cell action with delete shortcut
added move cell up/down actions with shortcuts
fixed EDU-245 More clear UI for creating task windows
fixed EDU-143 Add documentation comments to the test_helper.py
fixed EDU-190 Increace plugin versions
fixed EDU-123 Plugin description
fixed EDU-200 Course creation dialog - text goes beyond the window
IDEA-80234 (Code inspector show false positive (error) on advanced regular expression)
fixed wording
updated course archive
Merge remote-tracking branch 'origin/master'

Conflicts:
	python/edu/course-creator/src/org/jetbrains/plugins/coursecreator/actions/CCAddTaskWindow.java
	python/edu/learn-python/src/com/jetbrains/python/edu/editor/StudyEditor.java