Implement Twikee singleton
Implement basic alert view display + Twikee protocol
Trigger should display / will display / did display delegate methods
Trigger did cancel delegate
Handle Tweet sending + did fail delegate
Trigger success posting tweet delegate
Add method to check is posting tweets is possible
Refractor Twikee error object
Throws exception if tweet > 140 characters
Add a placeholder message
Code formatting
Rename placeholder by messagePrefix
Delete placeholder property
Include license in source files
Merge branch 'master' of https://github.com/Neirys/Twikee