Support JarUrlConnection with regexp in the SU <classpath/>

It's possible to extend the SU classloader using the <classpath/> tag.
Currently, the <location/> tag in classpath uses File and expects something like /path/to/my.jar.

We are going to extend this using JarUrlConnection inside the <location/> tag. Using JarUrlConnection, the user will be able to use classpath extension like :
jar:file:/path/to/my.ear!/my.jar
for example.

Moreover, we will add regexp supports for jar lookup. At the end, the user will be able to use something like that :
jar:file/path/to/my.ear!/my*.jar