Update podspec.

Author: oleghnidets

OHMySQL.podspec

@@ -4,7 +4,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'OHMySQL'
-  s.version          = '2.1.2'
+  s.version          = '2.1.3'
   s.summary          = 'A simple Objective-C wrapper for MySQL C API.'
   s.description      = <<-DESC
 You can connect to your remote MySQL database using OHMySQL API. It allows you doing queries in easy and object-oriented way. Common queries such as SELECT, INSERT, DELETE, JOIN are wrapped by Objective-C code and you don't need to dive into MySQL C API.