Merge pull request #11 from jankopriva/jk-sshot

FEATURE: CL-1562 Integration tests - failure screenshots
FEATURE: CL-1587 AIT - selecting items from PageFragmentArray

By.css and By.xpath find root element under parent fragment root element. By.globalCss and By.globalXpath find the element in the whole page. Grunt support added with test and server targets.