Updated library version to 2.0.2
Production environment
MERGE: development branch
Fixed merge conflict
Merge branch 'development' into ios7-identifier
Added deviceIdentifier to get the advertising identifier on iOS6+
Added wrapper for keychain operations
Added IOS6 check to defines
Added deviceIdentifier to POST requests
Clean urls
Added deviceIdentifier to GET requests (replacing the udid)
New GET requests only for IOS7+
Added internalId control in beacon request/response