Merge pull request #23 from cjthompson/sha-bug-fix

URGENT FIX: SHA hashing broken on Android for UTF8

Author: ghbutton

android/src/main/java/com/pedrouid/crypto/RCTSha.java

@@ -86,7 +86,7 @@ public void shaBase64(String data, String algorithm, Promise promise) throws Exc
     @ReactMethod
     public void shaUtf8(String data, String algorithm, Promise promise) throws Exception {
         try {
-            byte[] digest = data.getBytes();
+            byte[] digest = this.sha(data.getBytes(), algorithm);
             promise.resolve(Base64.encodeToString(digest, Base64.DEFAULT));
         } catch (Exception e) {
             promise.reject("-1", e.getMessage());