bump bokehjs version to 0.4.3 and rebuild
update docs version to 0.4.3
Merge branch 'master' into release_0.4.3
py3k fix

remove xrange from hover example
fix server encoding from redis on py3

need to investigate further to make consistent choices for
shelve/redis/memory across py2/3
Fixed examples line dash validation.
Merge branch 'release_0.4.3' of github.com:ContinuumIO/bokeh into release_0.4.3
fix output_notebook calls

need to provide url, not name (leftover cruft?)
Merge branch 'release_0.4.3' of github.com:ContinuumIO/bokeh into release_0.4.3
fixing py3 embedding
skipping remote data tests if arraymanagement is not installed
fix #527
restore demo to previous state
Merge branch 'release_0.4.3' of github.com:ContinuumIO/bokeh into release_0.4.3
reverse sense of @skipIf test for arraymanagement
fix axis creation for spectrogram

LinearAxis exposed as model/collection
fix default ticker/formatter initialize

need to use Collection.create in order to create object
with resolvable reference
update bokehjs release for 0.4.3
update changelog and roadmap for 0.4.3
remove extraneous Mixin class from reference