update changelog for 1.29.0

Author: etpinard

CHANGELOG.md

@@ -10,6 +10,46 @@ https://github.com/plotly/plotly.js/compare/vX.Y.Z...master
 where X.Y.Z is the semver of most recent plotly.js release.
 
 
+## [1.29.0] -- 2017-07-19
+
+### Added
+- Add touch interactions to cartesian, gl2d and ternary subplots including for
+  select and lasso drag modes [#1804, #1890]
+- Add support for contour line labels in `contour` and `contourcarpet` traces
+  [#1815]
+- Add support for select and lasso drag modes on `scattermapbox` traces [#1836]
+- Add double click interactions to mapbox subplots [#1883]
+- Add reset view and toggle hover mode bar buttons to mapbox subplots [#1883]
+- Add support for array `marker.opacity` settings in `scattermapbox` traces
+  [#1836]
+- Add `namelength` layout and trace attribute to control the trace name's
+  visible length in hover labels [#1822]
+- Add `cliponaxis` attribute to `scatter` and `scatterternary` traces to allow
+  markers and text nodes to be displayed above their subplot's axes [#1861]
+- Add axis `layer` attribute with `'above traces'` and `'below traces'` values
+  [#1871]
+- Add granular `editable` configuration options [#1895]
+- Expanded traces generated by transforms now have unique colors [#1830]
+
+### Fixed
+- Fix axis line width, length, and positioning for coupled subplots [#1854]
+- Fix alignment of cartesian tick labels [#1854]
+- Fix rendering and updates of overlaying axis lines [#1855]
+- Fix hover for 2D traces with custom colorbar `tickvals` [#1891]
+- Fix hover and event data for `heatmapgl` and `contourgl` traces [#1884]
+- Fix event data for `pie` and `sankey` traces [#1896]
+- Fix drag mode `'pan'`in IE and Edge [#1871]
+- Fix bar, error bar and box point scaling on scroll zoom [#1897]
+- Fix shading issue in `surface` trace in iOS [#1868]
+- Fix lasso and select drag modes for `scatterternary` traces [#1831]
+- Fix cases of intersecting `contour` lines on log axes [#1856]
+- Safer construction of `popup` click handler [#1888]
+- Fix animation of annotations, shapes and images [#1315]
+- Fix histogram bin computation when more than 5000 bins are needed [#1887]
+- Fix tick label rendering when more than 1000 labels are present [#1898]
+- Fix handling of empty `transforms` item [#1829]
+
+
 ## [1.28.3] -- 2017-06-26
 
 ### Fixed