Fix isConnectionError on iOS 8
Protect against range exception
Fix placeholder position on iOS 8
Bump to 3.2.0
This tweak is supposed to fix a flicker on sdk launch
Update README.md

Mentioned that version 3.2 supports iOS 8
Update README.md

Added link to demo Help Center app in App Store.
update user voice sdk to 3.2.0 for iOS 8 fixes.

Merge branch 'master' of https://github.com/uservoice/uservoice-ios-sdk

Conflicts:
	Classes/UVRootViewController.m