Merge pull request #1184 from ContinuumIO/task/bokehjs_release

Task/bokehjs release
Merge pull request #1183 from ContinuumIO/mattpap/fix-ci-version

Fix get_version_from_git() to support release commits
first pass at plotting.py
auto-open examples
Merge pull request #1131 from ContinuumIO/mattpap/buttons

Button widgets
quick fix to remove toolbars on subplots in gridplots
expose google map type to python
also fix positioning and zoom errors
Merge pull request #1193 from ContinuumIO/bugfix/gridplot_toolbar

quick fix to remove toolbars on subplots in gridplots
remove toolbars from spectrogram plot
Merge branch 'master' of github.com:ContinuumIO/bokeh
Merge pull request #1194 from ContinuumIO/feature/map_options

expose google map type to python
Add glyphs/trail example (altitude profile + map)
Catching up to 0.6.0 (ish) master
Fix py3 compatibility in glyphs/trail
fix query for conjuctions
Fixing imports
image_rgb and contours don't fail with color_mapper.  image does fail, none really use it.
Adding support for additional kwargs to gridplot()
more fixes, tests, glyph/glyphsepc correspondance