Set dotnet environment variables for ci builds

.travis.yml

@@ -3,6 +3,10 @@ os:
   - linux
   - osx
 dist: trusty
+env:
+  global:
+    - DOTNET_SKIP_FIRST_TIME_EXPERIENCE=1
+    - DOTNET_CLI_TELEMETRY_OPTOUT=1
 mono:
   - latest
 dotnet: 1.0.1

appveyor.yml

@@ -5,6 +5,8 @@ skip_branch_with_pr: true
 configuration:
 - Release
 environment:
+  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1
+  DOTNET_CLI_TELEMETRY_OPTOUT: 1
   NUGET_API_KEY:
     secure: Xv89dlP2MSBZKhl1nrWSxqcDgCXB0HRhOd4SWQ+jRJ7QoLxQel5mLTipXM++J3G5
   NUGET_API_URL: https://www.nuget.org/api/v2/package