chore: bump version to 8.0.0-beta.1 w/ changelog (#15757)

Author: mmalerba

CHANGELOG.md

@@ -1,3 +1,12 @@
+# 8.0.0-beta.1 "suede-banana" (2019-04-08)
+
+
+### Features
+
+* run v8 migration schematics for v8 beta and rc releases ([#15753](https://github.com/angular/material2/issues/15753)) ([bb5d544](https://github.com/angular/material2/commit/bb5d544))
+
+
+
 # 8.0.0-beta.0 "spidersilk-barbell" (2019-04-05)
 
 ### Project setup

package.json

@@ -28,7 +28,7 @@
     "preinstall": "node ./tools/npm/check-npm.js",
     "format": "git-clang-format HEAD $(git diff HEAD --name-only | grep -v \"\\.d\\.ts\")"
   },
-  "version": "8.0.0-beta.0",
+  "version": "8.0.0-beta.1",
   "requiredAngularVersion": ">=7.0.0",
   "dependencies": {
     "@angular/animations": "8.0.0-beta.10",