Release of XStudio 1.0a4

The version 1.0a4 of XStudio has been released and is available for download at the usual location: http://www.xqual.com/support/download.html.

Main changes from 1.0a3 are:

* Coverage metrix on campaigns (full and partial)
* Coverage metrix on campaign sessions (full and partial)
* Coverage metrix on category (req + spec + test)
* Coverage metrix on folders (req + spec + test)
* Automatically create testcases if the launcher is requesting it
* Progression/Regression metrix on campaign
* Bug-fix:
- Percentage rounding in coverages
- Dependency graph modality problems
- VisualStudio launcher results parsing finally implemented

I also worked on:
* New website (http://www.xqual.com) supporting perfectly IE7+, Firefox3+, Chrome and Safari
* New open-source section (GPL3) on the website containing all the launchers
* Initiation of teh development of automated functional tests on:
- the XStudio NSIS installer (using the AutoIt launcher)
- the XStudio Java unit testing (using the JUnit4 launcher)

In addition, I developed a bunch of new launchers for XStudio:
* Froglogic Squish for Qt
* Froglogic Squish for the web application
* Microsoft Visual Studio Team System
* Jalian Marathon
* Beanshell
* JUnit v3
* JUnit v4
* PyUnit
* NUnit (.NET)
* TestNG