Updates 'who is using it' section

Fixes delete sizing and title problems (#30)

Merge pull request #33 from xhacker/patch-1

Fixes podspec summary length

Add Pomotodo to README.md

Version bump to 2.1 and podspec update

Merge branch 'development'

Updates README for iOS 8 compatibility

Fixes iOS 7 and iOS 8 parallel support

Adds iOS 8 support

Merge branch 'master' into 'development'

Changes podspec file to release 2.0

Fixes typo

Improves 'Customizing' section and adds 'Detect when button gets pressed' section

Adds note about iOS 8 compatibility