Change forceRTL to allowRTL

Summary: Rename the forceRTL to allowRTL so that make it much clear to read. And change a typo.

Reviewed By: fkgozali

Differential Revision: D3489235

fbshipit-source-id: b9803dfbcda2f764b7e752c9810cfc7a0b9fe39b

Author: MengjueW

React/Modules/RCTI18nUtil.h

@@ -18,8 +18,8 @@
 @interface RCTI18nUtil : NSObject
 
 - (BOOL)isRTL;
-- (BOOL)forceRTL;
-- (void)setForceRTL:(BOOL)value;
+- (BOOL)allowRTL;
+- (void)setAllowRTL:(BOOL)value;
 + (id)sharedInstance;
 
 @end

React/Modules/RCTI18nUtil.m

@@ -22,26 +22,26 @@ + (id)sharedInstance {
    return sharedRCTI18nUtilInstance;
 }
 
-// If currnent using language is RTL language and meanwhile set forceRTL on the JS side,
+// If current using language is RTL language and meanwhile set allowRTL on the JS side,
 // the RN app will automatically have a RTL layout.
 - (BOOL)isRTL
 {
-  if ([self forceRTL] && [self isApplicationPreferredLanguageRTL]) {
+  if ([self allowRTL] && [self isApplicationPreferredLanguageRTL]) {
     return YES;
   }
   return NO;
 }
 
-- (BOOL)forceRTL
+- (BOOL)allowRTL
 {
   BOOL rtlStatus = [[NSUserDefaults standardUserDefaults]
-                            boolForKey:@"RCTI18nUtil_forceRTL"];
+                            boolForKey:@"RCTI18nUtil_allowRTL"];
   return rtlStatus;
 }
 
-- (void)setForceRTL:(BOOL)rtlStatus
+- (void)setAllowRTL:(BOOL)rtlStatus
 {
-  [[NSUserDefaults standardUserDefaults] setBool:rtlStatus forKey:@"RCTI18nUtil_forceRTL"];
+  [[NSUserDefaults standardUserDefaults] setBool:rtlStatus forKey:@"RCTI18nUtil_allowRTL"];
   [[NSUserDefaults standardUserDefaults] synchronize];
 }