bump dash version to v1.2.0

Author: Marc-André Rivet

dash/CHANGELOG.md

@@ -1,7 +1,13 @@
-## [UNRELEASED]
+## [1.2.0] - 2019-08-27
 ### Added
 - [#860](https://github.com/plotly/dash/pull/860) Adds a new arg `dev_tools_prune_errors` to `app.run_server` and `app.enable_dev_tools`. Default `True`, tracebacks only include user code and below. Set it to `False` for the previous behavior showing all the Dash and Flask parts of the stack.
 
+### Changed
+- Bumped dash-table version from 4.1.0 to [4.2.0](https://github.com/plotly/dash-table/blob/master/CHANGELOG.md#420---2019-08-27)
+- Bumped dash-core-components version from 1.1.1 to [1.1.2](https://github.com/plotly/dash-core-components/blob/master/CHANGELOG.md#112---2019-08-27)
+- Bumped dash-html-components version from 1.0.0 to [1.0.1](https://github.com/plotly/dash-html-components/blob/master/CHANGELOG.md#101---2019-08-27)
+- Bumped dash-renderer version from 1.0.0 to [1.0.1](https://github.com/plotly/dash/blob/dev/dash-renderer/CHANGELOG.md#101---2019-08-27)
+
 ## [1.1.1] - 2019-08-06
 ### Changed
 - Bumped dash-core-components version from 1.1.0 to [1.1.1](https://github.com/plotly/dash-core-components/blob/master/CHANGELOG.md#111---2019-08-06)

dash/version.py

@@ -1 +1 @@
-__version__ = '1.1.1'
+__version__ = '1.2.0'

requires-install.txt

@@ -1,8 +1,8 @@
 Flask>=1.0.2
 flask-compress
 plotly
-dash_renderer>=1.0.0
-dash-core-components>=1.1.1
-dash-html-components>=1.0.0
-dash-table>=4.1.0
+dash_renderer==1.0.1
+dash-core-components==1.1.2
+dash-html-components==1.0.1
+dash-table==4.2.0
 future