Add alert respunses to block and delegate
Merge branch 'master' of https://github.com/Darktt/DTAlertView

# By Li Ying-Zhi (1) and shouian (1)
# Via Li Ying-Zhi (1) and shouian (1)
* 'master' of https://github.com/Darktt/DTAlertView:
  Add textfield style in DTAlertView.
  Create README.md

Conflicts:
	DTAlertView/DTAlertView.m