Add failing test for gh-3459
Add failing test for completing arguments after '%run foo.py '
Improve matching files after script name for magic %run.

Closes gh-3459
Add failing test for duplicate dirs in completions
Fix duplicate directories in %run tab completion
Partially normalise paths for Windows tests
Added automatic close of Brackets.
Forgot to add the needed js file...
add regex support to AssertPrints
add IPython.html.nbextensions.install_nbextension

for installing files into IPYTHONDIR/nbextensions
add `ipython install-nbextension` entrypoint
add install_nbextension at top-level IPython.html
support URLs and zip/tarballs in install_extension
typo
allow installing nbextensions with symlinks
add check_nbextension
add IPython.load_extensions in js
Remove legacy azure nbmanager
handle image size metadata in nbconvert html
remove base_kernel_url