[maven-release-plugin] prepare release zanata-1.5.0-alpha-1
[maven-release-plugin] prepare release zanata-1.5.0-alpha-1

zanata/zanata-platform,zanata/zanata-platform,zanata/zanata-platform,zanata/zanata-platform,zanata/zanata-platform,zanata/zanata-platform,zanata/zanata-platform