Coveralls + AppVeyor + Travis CI (#171)

* added build files

* changed build script

* revert dotnet version to older one

* added osx building

* added appveyor build

* added ruby upload code coverage

* added gulp cli to downloads

* added gulp util to deps

* added through2 to deps

* added cask install for dotnet

* added coveralls gem install to appveyor

* fixed ruby script

* change upload to be gulp

* updated call

* added test for nin

* testing

* testing

* testing

* added coveralls nuget

* echoed path

* added code coverage badge

* updated cmd

* fixed syntax error

* added dotnet to path

* added manual call to dotnet

* iterate

* change directory

* commit

* added start to dotnet core version

* changed appveyor

* updated dotnet versions

* updated readme

* removed unnec de

* customize for microsoft

* specified encrypted key in appveyor

* updated readme; added newlines

* added branches to ymls

* updated ymls

appveyor.yml

@@ -0,0 +1,27 @@
+environment:
+    COVERALLS_REPO_TOKEN:  
+       secure: Insert encrypted coveralls token here
+
+# safelist
+branches:
+  only:
+    - master
+    - dev
+
+before_build:
+- appveyor-retry dotnet restore -v Minimal
+
+build_script:
+  - dotnet build src/Microsoft.SqlTools.ServiceLayer
+
+test_script:
+  - dotnet test test/Microsoft.SqlTools.ServiceLayer.Test
+
+after_test:
+  - cd test/CodeCoverage
+  - npm install -g gulp-cli
+  - runintegration.bat
+  - cmd: packages\coveralls.io.1.3.4\tools\coveralls.net.exe --opencover coverage.xml
+
+cache:
+- '%USERPROFILE%\.nuget\packages'