update README and LICENSE files expath#52 (expath#53)

- add release badge (displayed when the release is available)
- remove references to maven plugins as XSpec plugins are in the process to be consolidated under the XSpec organisation
- remove reference to jxsl (this project doesn't seem to be active anymore)
- add section Contribute
- update License section and years in copyright

LICENSE

@@ -1,6 +1,6 @@
 The MIT License
 
-Copyright (c) 2008, 2010 Jeni Tennison
+Copyright (c) 2008-2017 Jeni Tennison
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -18,4 +18,4 @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
+THE SOFTWARE.

README.md

@@ -1,39 +1,26 @@
 [![Travis Build Status](https://api.travis-ci.org/xspec/xspec.svg?branch=master "Travis Build Status")](https://travis-ci.org/xspec/xspec)
 [![AppVeyor Build status](https://ci.appveyor.com/api/projects/status/github/xspec/xspec?branch=master&svg=true "AppVeyor Build Status")](https://ci.appveyor.com/project/xspec/xspec/branch/master)
 
-## XSpec
+## XSpec [![Release](https://img.shields.io/github/release/xspec/xspec.svg)](https://github.com/xspec/xspec/releases/latest)
 
-Version 0.4.0.
+XSpec is a unit test and [behaviour driven development](http://en.wikipedia.org/wiki/Behavior_Driven_Development) (BDD) framework for XSLT and XQuery.  It is based on the Spec framework of [RSpec](http://rspec.info/), which is a BDD framework for Ruby.
 
-XSpec is a [Behaviour Driven Development](http://en.wikipedia.org/wiki/Behavior_Driven_Development)
-(BDD) framework for XSLT and XQuery.  It is based on the Spec
-framework of [RSpec](http://rspec.info/), which is a BDD framework for
-Ruby.
+XSpec consists of a syntax for describing the behaviour of XSLT or XQuery code and some code that enables to test the code against those descriptions.
 
-XSpec consists of a syntax for describing the behaviour of your XSLT
-or XQuery code, and some code that enables you to test your code
-against those descriptions.
+## Getting Started
 
-Maven plugins for running XSpec tests as part of a build are available from [adamretter](http://github.com/adamretter/xspec-maven-plugin) and [daisy](http://github.com/daisy/xspec-maven-plugin).
+To get started, check out the installation instructions for [MacOS/Linux](https://github.com/xspec/xspec/wiki/Installation-on-Mac-and-Linux) and [Windows](https://github.com/xspec/xspec/wiki/Installation-on-Windows) and how to [write your first XSpec test](https://github.com/xspec/xspec/wiki/Getting-Started). 
 
-An external project, [jxsl](http://code.google.com/p/jxsl/), provides
-a Maven archetype for XSpec (Ant is expected soon). The goal is to
-provide everything needed to integrate with Continuous Integration
-tools for Java (like Hudson, Cruise Control, etc.) See Benoit's
-[presentation at Balisage 2011](http://www.balisage.net/Proceedings/vol7/html/Mercier01/BalisageVol7-Mercier01.html)
-in Montreal for more info.
+## Support
 
-The project owners are Jeni Tennison and Florent Georges.
+Check out the XSpec documentation in the [wiki](https://github.com/xspec/xspec/wiki) before raising an issue or ask a question. If you have any question which is not answered in the wiki, feel free to [raise an issue](https://github.com/xspec/xspec/issues) or post it in the [XSpec discussion list](http://groups.google.com/group/xspec-users). 
 
-### Usage:
+## Contribute
 
-For more information about using XSpec, visit the project wiki at
-<https://github.com/expath/xspec/wiki>. If you have any questions,
-you can also join (or search the archives of) the XSpec discussion
-list: <http://groups.google.com/group/xspec-users>.
+XSpec is an open source project originally written by [Jeni Tennison](https://github.com/JeniT). It was maintained in the past years by [Florent Georges](https://github.com/fgeorges). Active development of XSpec restarted in 2016 and the project is currently maintained by [Sandro Cirulli](https://github.com/cirulls) with the help of the XSpec community. 
 
+If you wish to contribute to XSpec, [raise or pick up an issue](https://github.com/xspec/xspec/issues) and [send us your pull requests](https://github.com/xspec/xspec/pulls). Please document any issue with examples of your XSpec code.  
 
-### License:
+## License
 
-XSpec is released under the MIT license.  For a copy of this license,
-see [LICENSE](LICENSE), or go to <http://www.opensource.org/licenses/mit-license.php>.
+XSpec is released under the [MIT License](LICENSE). [Few parts of the codebase](https://github.com/xspec/xspec/blob/master/java/com/jenitennison/xslt/tests/XSLTCoverageTraceListener.java) are released under the [Mozilla Public License](http://www.mozilla.org/MPL/).