License headers for files added to the Tuscany svn repository

[Simon Nash <na...@apache.org>]

With a few new contributors now submitting code patches, this seems
like an appropriate time to remind everyone that code contributed
to Tuscany should contain standard legal headers referring to the
Apache License 2.0.  This applies to the file types .java, .xml and
.composite, and also to any other file type that allows comment lines
to be included at the start.  The exact wording and layout of this
header can be found by looking at existing files in the Tuscany
svn repository.  See [1] for an example.

It's a mandatory Apache requirement to have these headers in files
that will be part of a release.  For other files such as experimental
code in a private sandbox, it's not absolutely necessary to have these
headers but it's good practice to get into the habit of doing this
all the time.

   Simon

[1] http://svn.apache.org/repos/asf/tuscany/sca-java-2.x/trunk/testing/itest/lifecycle/src/main/java/binding/lifecycle/LifecycleReferenceBindingProvider.java