[zanata/zanata-server] 427dac: minor cleanup and add javadoc

[GitHub]

  Branch: refs/heads/seam-to-cdi
  Home:   https://github.com/zanata/zanata-server
  Commit: 427dacac5e94f816f096d44afa8fad45e3ce4a78
      https://github.com/zanata/zanata-server/commit/427dacac5e94f816f096d44afa8fad45e3ce4a78
  Author: Patrick Huang <pahuang at redhat.com>
  Date:   2015-10-08 (Thu, 08 Oct 2015)

  Changed paths:
    M zanata-war/src/main/java/org/zanata/servlet/HttpRequestAndSessionHolder.java
    M zanata-war/src/main/java/org/zanata/webtrans/server/TranslationUpdateListener.java

  Log Message:
  -----------
  minor cleanup and add javadoc