Updated to 1.3c: fixed an issue where "Data for some jobs has not been
entered" warning message was displayed incorrectly
* NewSignatureViewController.cs: Updated to 1.3c: fixed signing
  screens not being displayed properly on iPads running iOS 7, fixed
  signature field responding to touches before "Start signing" button
  was not clicked


* Info.plist:
* Puratap.csproj: Updated to 1.3c


* ServerClientViewController.cs: Updated to 1.3c