[zanata/zanata-platform] b37e23: fix(ZNTA-568): Improve strings and exceptions

[GitHub]

  Branch: refs/heads/ZNTA-568-upload-feedback
  Home:   https://github.com/zanata/zanata-platform
  Commit: b37e2319408fad2ae4dad94ebfa88f36b23830a6
      https://github.com/zanata/zanata-platform/commit/b37e2319408fad2ae4dad94ebfa88f36b23830a6
  Author: Damian Jansen <djansen at redhat.com>
  Date:   2018-04-06 (Fri, 06 Apr 2018)

  Changed paths:
    M common/zanata-adapter-po/src/main/java/org/zanata/adapter/po/PoReader2.java
    A common/zanata-adapter-po/src/main/java/org/zanata/adapter/po/PoReaderException.java
    M server/services/src/main/java/org/zanata/file/SourceDocumentUpload.java
    M server/services/src/main/java/org/zanata/rest/service/ResourceUtils.java
    M server/services/src/main/java/org/zanata/service/impl/TranslationFileServiceImpl.java
    M server/zanata-war/src/test/java/org/zanata/rest/service/raw/TranslationResourceRestITCase.java

  Log Message:
  -----------
  fix(ZNTA-568): Improve strings and exceptions