Further support for countdown timer

These changes should fix #72

Added an additional initialiser which allows to set the countdown timer
to an initial countdown interval.

Changed picker view configuration regarding the existence of countdown
timer.
Merge branch 'travis-updates'
fix schemes
fix #65 and #75
Update podspec to version 1.1.21
update readme
diff --git a/README.md b/README.md
index 6605e09..aaacdbc 100755
--- a/README.md
+++ b/README.md
@@ -140,19 +140,12 @@ The "old school" way is manually add to your project all from [Pickers](/Pickers
 #### For iOS 8 (Objective-C + Swift):
 `open Example.xcworkspace`

-Here is 3 projects:
+Here is 4 projects:

 - **CoreActionSheetPicker** - all picker files combined in one Framework. (available since `iOS 8`)
 - **ActionSheetPicker** - modern and descriptive Obj-C project with many examples.
-- **Swift-Example** - example, written on Swift. (only with basic 3 Pickers examples, for all examples please run `ActionSheetPicker` project)
-
-
-
-#### For iOS 6 and 7:
-Left just for compatability with older versions:
-
-`open Example-for-iOS-7-and-6/ActionSheetPicker.xcodeproj`
-
+- **Swift-Example** - example, written on Swift. (only with basic 3 Pickers examples, for all examples please run `ActionSheetPicker` project)
+- **ActionSheetPicker-iOS6-7** -  iOS 6 and 7 comparable project. or to run only this project `open Example-for-and-6/ActionSheetPicker.xcodeproj`

 ## Screen Shots

@@ -174,6 +167,6 @@ Left just for compatability with older versions:

 ## Credits

-ActionSheetPicker was originally created by [Tim Cinema](http://github.com/TimCinel) ([@TimCinel](http://twitter.com/TimCinel))
+ActionSheetPicker was originally created by [Tim Cinel](http://github.com/TimCinel) ([@TimCinel](http://twitter.com/TimCinel))

 And most of all, thanks to ActionSheetPicker-3.0's [growing list of contributors](https://github.com/skywinder/ActionSheetPicker-3.0/graphs/contributors).
Merge branch 'master' of https://github.com/mgmart/ActionSheetPicker-3.0 into mgmart-master
prettify code, move duration to public interface
add swift examples for all type of DatePickers
update property name
update example
Update script
- General fixes for #74 & #50
- Remove unused init function.
- Add CountDownTimer support to blocks.
- Remove redudant countDownDuration init
Merge pull request #76 from skywinder/countDownDatePickerUpdate

- General fixes for #74 & #50
fix script
Merge branch 'update-ruby-script'
Update podspec to version 1.2.0
Added support for popover customizations.
Merge pull request #77 from openreply/master

Added support for popover customizations.
Fixed #68