Bump widget version to 0.8.0-rc.1

Author: jonmmease

Diff for: js/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "plotlywidget",
-  "version": "0.7.1",
+  "version": "0.8.0-rc.1",
   "description": "The plotly.py ipywidgets library",
   "author": "The plotly.py team",
   "license": "MIT",

Diff for: js/package.json

@@ -2,4 +2,4 @@
 # for automated dev builds
 #
 # It is edited by hand prior to official releases
-__frontend_version__ = '0.7.1'
+__frontend_version__ = '0.8.0-rc.1'

Diff for: plotly/_widget_version.py

@@ -12651,7 +12651,7 @@ module.exports = function identity(d) { return d; };
 /* 19 */
 /***/ (function(module, exports) {
 
-module.exports = {"name":"plotlywidget","version":"0.7.1","description":"The plotly.py ipywidgets library","author":"The plotly.py team","license":"MIT","main":"src/index.js","repository":{"type":"git","url":"https://github.com/plotly/plotly.py"},"keywords":["jupyter","widgets","ipython","ipywidgets","plotly"],"files":["src/**/*.js","dist/*.js"],"scripts":{"clean":"rimraf dist/ && rimraf ../plotlywidget/static","prepublish":"webpack","test":"echo \"Error: no test specified\" && exit 1"},"devDependencies":{"webpack":"^3.10.0","rimraf":"^2.6.1","ify-loader":"^1.1.0"},"dependencies":{"plotly.js":"1.45.1","@jupyter-widgets/base":"^1.0.0","lodash":"^4.17.4"},"jupyterlab":{"extension":"src/jupyterlab-plugin"}}
+module.exports = {"name":"plotlywidget","version":"0.8.0-rc.1","description":"The plotly.py ipywidgets library","author":"The plotly.py team","license":"MIT","main":"src/index.js","repository":{"type":"git","url":"https://github.com/plotly/plotly.py"},"keywords":["jupyter","widgets","ipython","ipywidgets","plotly"],"files":["src/**/*.js","dist/*.js"],"scripts":{"clean":"rimraf dist/ && rimraf ../plotlywidget/static","prepublish":"webpack","test":"echo \"Error: no test specified\" && exit 1"},"devDependencies":{"webpack":"^3.10.0","rimraf":"^2.6.1","ify-loader":"^1.1.0"},"dependencies":{"plotly.js":"1.45.1","@jupyter-widgets/base":"^1.0.0","lodash":"^4.17.4"},"jupyterlab":{"extension":"src/jupyterlab-plugin"}}
 
 /***/ }),
 /* 20 */