update version to 1.4.1 in all the places (#21)

Author: nitin21

CHANGES.MD

@@ -1,3 +1,9 @@
+1.4.1 (2017-10-25)
+=================
+
+- Fix typo in ApplyDecisionFieldSet.java.
+- Throw a ServerException for all 5xx server responses.
+
 1.4 (2017-02-28)
 =================
 

README.md

@@ -11,13 +11,13 @@ Java 1.7 or later.
 <dependency>
     <groupId>com.siftscience</groupId>
     <artifactId>sift-java</artifactId>
-    <version>1.4</version>
+    <version>1.4.1</version>
 </dependency>
 ```
 ### Gradle
 ```
 dependencies {
-    compile 'com.siftscience:sift-java:1.4'
+    compile 'com.siftscience:sift-java:1.4.1'
 }
 ```
 ### Other

build.gradle

@@ -5,7 +5,7 @@ apply plugin: 'signing'
 apply plugin: 'java-library-distribution'
 
 group = 'com.siftscience'
-version = '1.4'
+version = '1.4.1'
 sourceCompatibility = 1.7
 targetCompatibility = 1.7