Remove bbsdk definiation and use BB maven repo

Removed the custom path for bbsdk, instead using BB maven repo for the
source of the file
Update webdriver to latest version
Add updating setting before test and restore after

The settings are stored in test/defaultSettings.properties and they
should match the ones in iPeer
Add group updating strategy to push all members

Now iPeer b2 will push out all members in the group, leaving the
comparing to iPeer.
Change help text to leave out the trailing slash