JBIDE-13434 BrowserSim: add taking screenshot ability

make screenshots folder configurable via preferences
JBIDE-13338 BrowserSim: integrate weinre functionality to BrowserSim
JBIDE-13338 BrowserSim: integrate weinre functionality to BrowserSim

add standart SWT browser
JBIDE-13338 BrowserSim: integrate weinre functionality to BrowserSim

fix incorrect work of multiple weinre instances
JBIDE-13338 BrowserSim:Integrate weinre functionality to browserSim

default server is changed to debug.phonegap.com
JBIDE-13338 BrowserSim: integrate weinre functionality to BrowserSim

abitily to configure weinre client and server via preferences added