Added Travis CI simple config

Author: grossws

.travis.yml

@@ -0,0 +1,17 @@
+dist: trusty
+sudo: false
+
+language: rust
+cache: cargo
+rust:
+- stable
+- beta
+- nightly
+matrix:
+  allow_failures:
+  - rust: nightly
+
+addons:
+  apt:
+    packages:
+    - libsmbclient

README.md

@@ -1,6 +1,7 @@
 # smbc -- `libsmbclient` wrapper
 
 [![Crates.io](https://img.shields.io/crates/v/smbc.svg)](https://crates.io/crates/smbc)
+[![Build Status](https://travis-ci.org/smbc-rs/smbc.svg?branch=master)](https://travis-ci.org/smbc-rs/smbc)
 [![Crates.io](https://img.shields.io/crates/l/smbc.svg)](https://crates.io/crates/smbc)
 
 ## About