Web-Harvest 0.5 released

*  html-to-xml parser is changed - HtmlCleaner is used instead of TagSoup.
* Script processor is introduced.
* template processor is now based on BeanShell instead of OGNL.
* Types are introduced in XQuery parameters.
* Few new constructors are added in class ScraperConfiguration.
* file and include processors now support both relative and absolute paths.
* Web-Harvest variables are case-sensitive from this version.