Update podspec to 1.0.7

Author: Michael Long

Resolver.podspec

@@ -1,12 +1,12 @@
 Pod::Spec.new do |s|
   s.name         = "Resolver"
-  s.version      = "1.0.6"
+  s.version      = "1.0.7"
   s.summary      = "An ultralight Dependency Injection / Service Locator framework for Swift 4 and iOS."
   s.homepage     = "https://github.com/hmlongco/Resolver"
   s.license      = "MIT"
   s.author       = "Michael Long"
   s.platform     = :ios, "9.0"
   s.source       = { :git => "https://github.com/hmlongco/Resolver.git", :tag => "#{s.version}" }
   s.source_files  = "Classes", "Sources/*.swift"
-  s.swift_version = '4.0'
+  s.swift_version = '4.2'
 end