Add new mode that can display an activity indicator
Change increased the alpha of the background color
Add bottom border to background
Change slightly darkened the background color of the error notification type
Remove markdown extension from license file
Fix layout bug when displaying the progress bar
Support iOS 5 #1

Please note iOS 5 support has only been tested on the iPhone simulator.
Change error notification title and subtitle
Minor code clean up
Change Xcode 5 DP5 was complaining of an Implicit conversion from enumeration type when setting the text alignment and line break mode using dot syntax fixed the warning
Change the method sizeWithFont:constrainedToSize:lineBreakMode: is now used to get the subtitle size
Add demo for TDNotificationModeActivityIndicator
Improve documentation
Add new helper method to display a notification with no delay showNotificationInView:title:subtitle:type:mode:dismissible:
Fix typo of word dismissible
Change TDNotificationModeActivityIndicator and TDNotificationModeProgressBar will be forced to use TDNotificationTypeMessage type

This is to avoid conflict with the icons that are used on the other two notification types.
Improve documentation
bump version to 0.4