#177736: cannot create rest client stubs for EE6 project

Issue:
https://netbeans.org/bugzilla/show_bug.cgi?id=177736

Description:
REST Client wizard doesn't allow user to select Java EE 6 project 
cantaining REST services.
The message appears:  "The project does not contain any REST services", 
which is wrong.
The issue is caused by introducing new option in Java EE 6 projects, 
where rest services can be configured by @ApplicationPath annotation, 
whichis a replaceemnt for web.xml configuration.

Impact:
User cannot create REST client stubs for Java EE 6 web project

Fix: The fix is base on checking either:
1. the presence of web.xml rest configuration or
2. annotation based rest configuration.
See:
http://hg.netbeans.org/main/rev/ab3802d3651e

Risk: easy fix, no risk

Reviewers: Lukas Jungmann (QA), Petr Hejl.

Thanks