Fix crash if tap outside popover of UIActionSheet dismisses it without selection. If presented from a UIBarButtonItem and a tap away dismisses the sheet's popover, the buttonIndex is -1 causing an index out of bounds exception.
Added itemWithLabel:action:

Buttons can be initialised at the same time as they are used.
Updated the README to include shorter form RIButton creation
Merge in changes from Jiva's master repo

Bring our fork up-to-date
Use concrete type in itemWithLabel instead of id

If something else in a project has an object with a label property and that class is ahead of RIButton in the imports, the compiler gives a warning that setLabel: is possibly receiving the wrong type.

Switching to the concrete RIButtonItem type clears this warning. There should be no adverse impact that I'm aware of.
Merge pull request #22 from martiancraft/master

Use concrete type in itemWithLabel instead of id
Merge pull request #20 from p-l/master

Added shortcut to create RIButton with both label and action
Fixed compiler error in itemWithLabel:action:

When newItem below is of type id, then setAction can match a number of selectors. E.g. UIMenuItem action property which takes SEL types. This fix changes newItem to type RIButtonItem so compiler can marshal parameters for method call correctly. See http://www.cocoawithlove.com/2011/06/big-weakness-of-objective-c-weak-typing.html

	id newItem = [self itemWithLabel:inLabel];
  	[newItem setAction:action];
Merge pull request #25 from ordovician/master

This fixes a compile error related to setAction: not being a unique selector. See commit for more details.
fixed typo in UIAlertView blocks example
Merge pull request #33 from aporat/patch-1

fixed typo in UIAlertView blocks example
Update README.md
Merge branch 'jira-master'

# By Patrick Burleson (2) and others
# Via Jiva DeVoe (5) and Patrick Burleson (1)
* jira-master:
  Update README.md
  fixed typo in UIAlertView blocks example
  Fixed compiler error in itemWithLabel:action:
  Use concrete type in itemWithLabel instead of id
  Updated the README to include shorter form RIButton creation
  Added itemWithLabel:action:
  Fix crash if tap outside popover of UIActionSheet dismisses it without selection. If presented from a UIBarButtonItem and a tap away dismisses the sheet's popover, the buttonIndex is -1 causing an index out of bounds exception.