Merge pull request #180 from valfirst/minor-improvement-use-isempty-instead-of-equals

Minor improvement: replace `equals("")` with `isEmpty()`

Author: sdstoehr

src/main/java/de/sstoehr/harreader/model/HarLog.java

@@ -38,7 +38,7 @@ public String getVersion() {
     }
 
     public void setVersion(String version) {
-        if (version == null || version.trim().equals("")) {
+        if (version == null || version.trim().isEmpty()) {
             version = DEFAULT_VERSION;
         }
         this.version = version;