make sure app exists before trying to open it
enable setting of location services preference via desired capability
Merge pull request #898 from jlipps/master

allow / don't allow location services for app on ios
make chrome tests run against chromiumtestshell since it runs on x86 emulators
when activity launching fails, try again with a .
Merge pull request #901 from jlipps/master

allow activities without periods in front
make this scrollTo test work on canonical test device
make sure sessions that fail to start still kill android bootstrap
actually fix safari alert issues
changelog and bump for npm publish 0.8.1
just blow away build/ to make sure random stuff doesn't get published
changelog and bump for publish 0.8.2