#38 Impelement type of context - 'node'

[Sergio Lissner]

Impelement type of context - 'node'
Each render request has its own node id. This reqeust
included parameters also.

In method PortletURL.toString() return '/node/ID'
instead something like
this: /ctx/ru_RU,index_template,mill.news_block,r,ns5/c
tx?
news.type=item&mill.id_news_item=4715&&mill.xmlroot=Xml
NewsItem