mark binary properly as binary for python 3
get bin test file to pass. (2nd try)
3rd
add tests for file download via ContentsManager
Merge branch 'serve-from-cm' of github.com:manuelRiel/ipython into serve-from-cm
pin requests to 2.4.1 on travis

bug in requests 2.4.2 doesn't allow unicode URLs on Python 2
Use \xFF in bin file test
added comment on reason for seperate ls_alias for OpenBSD/NetBSD
forbid known-bad requests-2.4.2
Merge pull request #6625 from bsvh/master

Fix ls_alias for certain BSDs
Merge pull request #6630 from minrk/travis-requests-2.4.1

forbid broken requests-2.4.2 on travis
Merge pull request #6617 from SylvainCorlay/selection

Selection Widgets: forcing 'value' to be in 'values'
correctly handle base64 and json, improve bin-file test
make base64 decoding ipython3 compatible
another shot at bin-tests on python3
fix bin-file test in ipython3
2 checks for python2 and python3)
Remove superfluous error checking
use ContentManagers own is_hidden() function
remove redundant abs_path