Added "iosVersion" setting, for selecting which version of iOS SDK to use.

I have iOS 7 as well as 6 installed on my machine. One of my module libraries was failing to build under iOS 7 and I had no way of forcing a build against a different version of iOS.

The setting sets the "--ios-version" parameter in the Ti CLI
Updated iosVersion command

Made an error with previous addition, should be in the right place
Merge pull request #10 from coolelephant/master

Added "iosVersion" setting, for selecting which version of iOS SDK to us...
Updated Titanium.py to improve error handling for iosVersion option
Added "iosVersion" into sublime settings
Merge pull request #11 from coolelephant/master

Updated Titanium.py to improve error handling and added to sublime-settings
Added options for iphone; non-retina, retina and retina-tall
Removed some crap
Added option "most recent configuration"
Removed some more crap

sorry
Remove autocomplete definition