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

README.md

@@ -1,3 +1,7 @@
+[![Travis CI](https://travis-ci.org/Microsoft/sqltoolsservice.svg?branch=dev)](https://travis-ci.org/Microsoft/sqltoolsservice)
+[![AppVeyor](https://ci.appveyor.com/api/projects/status/github/{INSERTUSERHERE}/sqltoolsservice?svg=true&retina=true&branch=dev)](https://ci.appveyor.com/project/{INSERTUSERHERE}/sqltoolsservice)
+[![Coverage Status](https://coveralls.io/repos/github/Microsoft/sqltoolsservice/badge.svg?branch=dev)](https://coveralls.io/github/Microsoft/sqltoolsservice?branch=dev)
+
 # Microsoft SQL Tools Service 
 The SQL Tools Service is an application that provides core functionality for various SQL Server tools.  These features include the following:
 * Connection management