bump dash to 1.4.0

Author: Marc-André Rivet

CHANGELOG.md

@@ -2,7 +2,7 @@
 All notable changes to `dash` will be documented in this file.
 This project adheres to [Semantic Versioning](http://semver.org/).
 
-## Unreleased
+## [1.4.0] - 2019-10-08
 ### Added
 - [#948](https://github.com/plotly/dash/pull/948) Support setting working directory for R apps run using the `dashr` fixture, primarily useful for tests with assets. `dashr.start_server` supports a `cwd` argument to set an explicit working directory, and has smarter defaults when it's omitted: if `app` is a path to an R script, uses the directory of that path; if `app` is a string, uses the directory the test file itself is in.
 - [#944](https://github.com/plotly/dash/pull/944)

dash/version.py

@@ -1 +1 @@
-__version__ = '1.3.1'
+__version__ = '1.4.0'

requires-install.txt

@@ -1,8 +1,8 @@
 Flask>=1.0.2
 flask-compress
 plotly
-dash_renderer>=1.1.0
-dash-core-components>=1.2.1
+dash_renderer==1.1.1
+dash-core-components==1.3.0
 dash-html-components==1.0.1
-dash-table>=4.3.0
+dash-table==4.4.0
 future