fix modal test for ActionSheetPicker-ios6-7
Merge pull request #2 from skywinder/velga-master

move title to instance variable
merge
added tests for new functionality(callback block/selector on custom button) for ActionSheetLocalePicker and ActionSheetDatePicker
Added new info to README.md
wrong readme commit
Added info about custom buttons to README.md
Merge branch 'master' of https://github.com/velga/ActionSheetPicker-3.0
fix typo
working example with test "custom button pressed"