SQOOP-3427: Add Travis badge to the Readme

Author: Fokko

COMPILING.txt COMPILING.adocCOMPILING.txt renamed to COMPILING.adoc

@@ -0,0 +1,18 @@
+[![Build Status](https://travis-ci.org/apache/sqoop.svg?branch=trunk)](https://travis-ci.org/apache/sqoop)
+
+# Welcome to Sqoop!
+
+This is the Sqoop (SQL-to-Hadoop) tool. Sqoop allows easy imports and
+exports of data sets between databases and HDFS.
+
+## More Documentation
+
+Sqoop ships with additional documentation: a user guide and a manual page.
+
+Asciidoc sources for both of these are in `src/docs/`. Run `ant docs` to build
+the documentation. It will be created in `build/docs/`.
+
+If you got Sqoop in release form, documentation will already be built and
+available in the `docs/` directory.
+
+For more information on compiling see [COMPILING.adoc](COMPILING.adoc).