Fixed import error.
Merge pull request #1022 from ContinuumIO/hotfix/flask_stock

Fixed import error.
Remove old sampleapp.
Merge pull request #1030 from ContinuumIO/examples/remove_sampleapp

Remove old sampleapp.
update documentation to match interface change

resolves #1028
fix spectrogram axis locations
Merge pull request #1036 from ContinuumIO/bugfix/spectrogram

fix spectrogram axis locations
Merge pull request #1035 from jdimatteo/master

update documentation to match interface change
Merge branch 'master' of https://github.com/ContinuumIO/bokeh