Merge pull request firebase#176 from morganchen12/drop-iOS7

Drop iOS 7

Author: morganchen12

FirebaseDatabaseUI/FirebaseArray.h

@@ -96,7 +96,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 /**
  * Support for subscripting. Resolves to objectAtIndex:
- * @param index The index of the item to retrieve
+ * @param idx The index of the item to retrieve
  * @return The object at the given index
  */
 - (id)objectAtIndexedSubscript:(NSUInteger)idx;

FirebaseUI.podspec

@@ -7,7 +7,7 @@ Pod::Spec.new do |s|
  s.source = { :http => 'https://github.com/firebase/FirebaseUI-iOS/releases/download/v0.6.1/FirebaseUIFrameworks.zip' }
  s.author = 'Firebase'
  s.platform = :ios
- s.ios.deployment_target = '7.0'
+ s.ios.deployment_target = '8.0'
  s.ios.framework = 'UIKit'
  s.requires_arc = true
  s.default_subspecs = 'All'