[maven-release-plugin] prepare release gridSearch-1.0.7

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka/trunk@9739 e0a1b77d-ad91-4216-81b1-defd5f83fa92
[maven-release-plugin] prepare for next development iteration

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka/trunk@9741 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Merge remote-tracking branch 'upstream'