Moved to non-framework portlet

ie a full Portlet maven project

Note: dependencies come from uPortal 3.2.4
move to uPortal4 dependencies (still JSR-168/PLT-1.0)

Increased dependencies version :
 – (Portlet  1.0 → 2.0) (still 1.0 fo now)
 – JSP      2.1 → 2.2
 – JSLT   1.1.2 → 1.2
 – Spring 2.5.6 → 3.1.4
 – log4j 1.2.15 → 1.2.17
 – Pluto  1.1.7 → 2.1.0-M3