DDF-475 Upgrade Mockito to version 1.9.5

This is required to support Powermock 1.5.4, which is needed for Oracle JDK 8 compatibility.
Merge pull request #1 from bradh/DDF-475

DDF-475 Upgrade Mockito to version 1.9.5
Reviewed by: @mrmateo
[maven-release-plugin] prepare release ddf-parent-2.0.0
[maven-release-plugin] prepare for next development iteration
DDF-592 update documentation to require Java 7
Merge pull request #2 from mplachec/master

DDF-592 update documentation to require Java 7
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