support another xcode version
Merge pull request #18 from appium/ios8

support another xcode version
Put quotes around path.  By default, Xcode side by side installs of 5 & 6 put 6 in 'Xcode 2.app'.
Merge pull request #19 from kurtisf/master

Put quotes around path.  By default, Xcode side by side installs of 5 & ...
1.4.6
add quotes around instruments log so we can copy/paste to run it