[zanata/zanata-platform] 0b0d9a: fix(ZNTA-2387): handle some null safety

[GitHub]

  Branch: refs/heads/ZNTA-2387-deeper-user-search
  Home:   https://github.com/zanata/zanata-platform
  Commit: 0b0d9ab07610b448583a11edc37b2b0e3163ac9f
      https://github.com/zanata/zanata-platform/commit/0b0d9ab07610b448583a11edc37b2b0e3163ac9f
  Author: Damian Jansen <djansen at redhat.com>
  Date:   2018-04-24 (Tue, 24 Apr 2018)

  Changed paths:
    M server/services/src/main/java/org/zanata/dao/AccountActivationKeyDAO.java
    M server/services/src/main/java/org/zanata/dao/AccountDAO.kt
    M server/services/src/main/java/org/zanata/dao/AllowedAppDAO.java
    M server/services/src/main/java/org/zanata/webtrans/server/rpc/GetTranslatorListHandler.java

  Log Message:
  -----------
  fix(ZNTA-2387): handle some null safety