using && in reset.sh needs run_cmd
make 7.0 the default ios version
and add docs on how to work with multiple versions
use xcode version to determine ios sdk
so we can get rid of --ios-sdk flag in reset.sh
make sure test.sh knows what tests to run for what ios sdk
use strings instead of arrays for args in test.sh
Merge pull request #1214 from jlipps/master

ios 7 compatibility updates