Merge pull request #55 from RxSwiftCommunity/fix/loosen-hard-dependency

Loosen RxSwift to `~> 3.5` instead of `~> 3.5.0`

Author: freak4pc

RxViewModel.podspec

@@ -25,6 +25,6 @@ Long story short: a blatant «imitation» of `ReactiveViewModel `using `RxCocoa`
   s.requires_arc = true
 
   s.source_files = 'Source/*.swift', 'Source/Categories/*.swift'
-  s.dependency 'RxSwift', '~> 3.5.0'
+  s.dependency 'RxSwift', '~> 3.5'
   s.frameworks = 'Foundation'
 end