API: Allow NotebookManagers to control kernel startup dir. #5468
disambiguate to location when no IPs can be determined

previously, fallback was to localhost, which could often be wrong.
update header in parallel.util
check for Python 3.2

in setup.py and init

treats unsupported 3.x < 3.3 like unsupported 2.x
Make SVGs resizable in the NB
cleanup some `pre` css inheritance

We had various overrides of the bootstrap defaults for font-size and line-height every time we made a pre tag,
and then some overrides of our overrides when we wanted something slightly different.

This moves the most basic overrides to apply to all pre tags,
reducing the number of downstream changes we need.
Add failing test for unbound method repr on Python 3
Use __qualname__ for pretty reprs where possible.

Closes gh-5566
Remove PyReadline as a install requirement on Windows
Remove the outdated keyboard shortcuts from notebook docs

Closes gh-5569

Backport to 2.x.
reset readline after running PYTHONSTARTUP

should avoid conflicts between IPython and Python completions
more semantic icons
remove auth and tree from ipython.less

@minrk said it's the right thing to do
use fixed-width icons, closes #5555
book icon for notebooks, color folders differently

This allows us to use the generic file icon for text files, etc, down
the line.
support binary files in FilesWriter
add PDFExporter

replace `nbconvert --to latex --post pdf`
with `nbconvert --to pdf`
support pdf export in the notebook UI
Update README.md

added instruction to `git checkout master` to activate the hooks and init/update the submodules.
add missing `browser` to notebook_aliases list