make release:perform work locally (+7 squashed commit)

Squashed commit:

[f8f51f1] [maven-release-plugin] prepare for next development iteration

[58247eb] [maven-release-plugin] prepare release jabb-core-1.0.50

[5672dff] don't push changes

[97df879] change to SNAPSHOT version

[06ed342] disable test when release

[55fa43f] using 2.5 version of maven release plugin

[83e2139] prepare to use maven release plugin
[maven-release-plugin] prepare release release/jabb-core-1.0.51
[maven-release-plugin] prepare for next development iteration
refactory and enhancement of the Hibernate Dao
[maven-release-plugin] prepare release release/jabb-core-1.0.52
[maven-release-plugin] prepare for next development iteration