iOS tips error and warning handle collect

1. Unexpected CFBundleExecutable key
http://stackoverflow.com/questions/32096130/unexpected-cfbundleexecutable-key

2. Could not find Developer Disk image
http://stackoverflow.com/questions/33885080/xcode-7-1-with-ios-9-2-error-could-not-find-developer-disk-image

3. Debug unrecognized selector
http://blog.jackhl.com/2012/05/03/how-to-debug-objective-c-unrecognized-selector/

4. Avoid warning of “xxx in block is likely to lead a retain cycle"
http://stackoverflow.com/questions/7853915/how-do-i-avoid-capturing-self-in-blocks-when-implementing-an-api

5. Could not insert new outlet connection
http://stackoverflow.com/questions/15288773/could-not-insert-new-outlet-connection

6. SearchDisplayController‘ is deprecated: first deprecated in iOS 8.0

http://stackoverflow.com/questions/25826332/searchdisplaycontroller-deprecated-in-ios-8

http://useyourloaf.com/blog/updating-to-the-ios-8-search-controller/

7. NSGregorianCalendar is deprecated: first deprecated in iOS 8.0

http://stackoverflow.com/questions/25626823/how-to-support-nscalendar-with-both-ios-7-and-8

8. Prevent warning of "performselector may cause a leak because its selector is unknown"
http://stackoverflow.com/questions/10793116/to-prevent-warning-from-performselect-may-cause-a-leak-because-its-selector-is

9. Warning "Scene is unreachable due to lack of entry points and does not have..."
http://stackoverflow.com/questions/34750847/scene-is-unreachable-due-to-lack-of-entry-points-and-does-not-have-soluti

10. Warning after add crashlytics "dYSM error" 
http://stackoverflow.com/questions/28614509/crashlytics-dsym-error

11. Warning "Prototype table cells must have reuse identifiers"
http://stackoverflow.com/questions/9808621/storyboard-warning-prototype-table-cells-must-have-reuse-identifiers