Merge pull request #29 from wangnuannuan/feature/ci

travis: install embarc tools first

Author: Wayne Ren

.ci/before_install.sh

@@ -21,7 +21,8 @@ fi
 
 {
     pip install --upgrade pip || die
-    pip install PrettyTable || die
-    pip install colorama || die
+    pip install embarc_cli || die
     pip install configparser || die
+    pip install requests || die
+    pip install XlsxWriter || die
 }