add javadoc

Author: vladak

opengrok-indexer/src/main/java/org/opengrok/indexer/configuration/Project.java

@@ -317,18 +317,32 @@ public void setHistoryBasedReindex(boolean flag) {
         this.historyBasedReindex = flag;
     }
 
+    /**
+     * Set username to be used for repository authentication.
+     * @param username username
+     */
     public void setUsername(String username) {
         this.username = username;
     }
 
+    /**
+     * @return username used for repository authentication
+     */
     public String getUsername() {
         return username;
     }
 
+    /**
+     * Set password to be used for repository authentication.
+     * @param password password
+     */
     public void setPassword(String password) {
         this.password = password;
     }
 
+    /**
+     * @return password used for repository authentication
+     */
     public String getPassword() {
         return password;
     }