Display only identities with APNS certificate
Sort identities by name
Merge branch 'feature/identity-filter'
Automatically detect sandbox environment
Removed obsolete checkbox
Duplicate code refactored into a separate function
Merge branch 'feature/sandbox-detection'
Merge pull request #18 from advantis/master

Implemented identities filtering, so now SFChooseIdentityPanel displays only APNS-related stuff