[maven-release-plugin] prepare for next development iteration
Added travis-ci image and updated doc
Added travis config file
Made create table sentence public
Reordered README.md

Well... I just want travis to test this branch.
[maven-release-plugin] prepare release persistence-0.9.24
Merge tag 'persistence-0.9.24'

[maven-release-plugin]  copy for tag persistence-0.9.24