Make compiling working in app by requiring 'Firebase/Database' and setting ios.deployment_target to '6.0'

Author: westoque

packages/cloud_functions/ios/cloud_functions.podspec

@@ -3,7 +3,7 @@
 #
 Pod::Spec.new do |s|
   s.name             = 'cloud_functions'
-  s.version          = '0.0.1'
+  s.version          = '0.0.2'
   s.summary          = 'A new flutter plugin project.'
   s.description      = <<-DESC
 A new flutter plugin project.
@@ -14,10 +14,11 @@ A new flutter plugin project.
   s.source           = { :path => '.' }
   s.source_files = 'Classes/**/*'
   s.public_header_files = 'Classes/**/*.h'
+  s.ios.deployment_target = '6.0'
   s.dependency 'Flutter'
   s.dependency 'Firebase/Core'
+  s.dependency 'Firebase/Database'
   s.dependency 'Firebase/Functions'
-  
-  s.ios.deployment_target = '8.0'
+  s.static_framework = true
 end