fail with a nice error message if xcrun can't find instruments (fix #1538)
fix at least one case of ios sims not being killed
cc @penguinho
Merge pull request #1542 from jlipps/master

misc fixes
Fixing get iOS SDK version for Xcode 4
Merge pull request #1543 from penguinho/locale_fix

Fixing get iOS SDK version for Xcode 4
Fixing iosDeviceString for iPad 64-bit case (missing parentheses).
Merge pull request #1544 from curtissiemens/master

Fixing iosDeviceString for iPad 64-bit case (missing parentheses).
Appium Doctor Start

This is a basic vesion of Appium Doctor that checks for Xcode, Xcode
Command Line Tools, JAVA_HOME, and ANDROID_HOME
allow iwebview to access https sites with self-signed certs
Merge pull request #1530 from penguinho/doctor

Appium Doctor Start
Merge pull request #1545 from jlipps/iwebview-https

allow iwebview to access https sites with self-signed certs
go ahead and kill sims before launching a new one
Update adb.js: fix typo error

line 511

this.getDeviceWithRetry(120000, cb);
changed to
this.getDevicesWithRetry(120000, cb);
Merge pull request #1546 from jlipps/master

go ahead and kill sims before launching a new one
Merge pull request #1547 from fbai/patch-1

Update adb.js: fix typo error
Update appium doctor for OS 10.8
Merge pull request #1550 from Astro03/master

Update appium doctor for OS 10.8