let's add travis build status

README.md

@@ -1,5 +1,6 @@
 # PWMAN3 
 
+[![Build Status](https://travis-ci.org/pwman3/pwman3.png?branch=master)](https://travis-ci.org/pwman3/pwman3)
 [![Coverage Status](https://coveralls.io/repos/pwman3/pwman3/badge.png)](https://coveralls.io/r/pwman3/pwman3)
 
 A nice command line password manager, which is smart enough to use different SQL Databases (MySQL, SQLite, PostgreSQL).