Check env and locale
Set language to en_US.UTF-8
Fix Podfile.lock
DDFileLogger: using CFBundleIdentifier as a log filename prefix on both OS X and iOS.

This fix #200.
Merge pull request #206 from dvor/ddfilelogger-fixing-bug-with-app-name

DDFileLogger: using CFBundleIdentifier as a log filename prefix on both OS X and iOS.
Merge pull request #205 from rivera-ernesto/fix_travis

Fix Travis