Adds Travis CI.

.travis.yml

+language: go
+before_script: go get github.com/gwenn/gosqlite

README.md

@@ -6,6 +6,11 @@ This binding implements the "database/sql/driver" interface.
 
 See [package documentation](http://go.pkgdoc.org/github.com/gwenn/gosqlite).
 
+[![Build Status][1]][2]
+
+[1]: https://secure.travis-ci.org/gwenn/gosqlite.png
+[2]: http://www.travis-ci.org/gwenn/gosqlite
+
 Open supports flags.  
 Conn#Exec handles multiple statements (separated by semicolons) properly.  
 Conn#Prepare can optionnaly #Bind as well.  

sqlite.go

@@ -455,7 +455,7 @@ func (c *Conn) BeginTransaction(t TransactionType) error {
 		return c.exec("BEGIN EXCLUSIVE")
 	}
 	panic(fmt.Sprintf("Unsupported transaction type: '%#v'", t))
-	// return nil // Go 1.1 unreachable code
+	return nil // Go 1.1 unreachable code
 }
 
 // Commit commits transaction