Added travis CI

Author: Nicolas Boisvert

README.md

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 # Laravel DB Import
 ###### By Nicolas Boisvert :: [email protected]
 
+[![Build Status](https://travis-ci.org/nicklayb/laravel-db-import.svg?branch=master)](https://travis-ci.org/nicklayb/laravel-db-import)
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 ### Laravel database import package for easy manipulations
 
 ## Purposes