* Session creation with useFrame parameter
* support for scraping without automatic frame traversing
* added IBrowser.swithcFrame(ElementSelector), and IBrowser.switchFrame(method, query)
* added IBrowser.setUseFrames(Boolean)
* bug fixes
* refactoring

Signed-off-by: Davor Stimac <davor.stimac@gmail.com>
* when useFrames fag is false, capture only current window

Signed-off-by: Davor Stimac <davor.stimac@gmail.com>
* inAllWindows will take only current window handle if context.useFrames is false

Signed-off-by: Davor Stimac <davor.stimac@gmail.com>
* AutoFrames/UseFrames default value fix

Signed-off-by: Davor Stimac <davor.stimac@gmail.com>
Merge pull request #15 from dstimac/master

AutoFrames/UseFrames option