[Merge] lp:~javier.collado/ubuntu/precise/checkbox/0.13.4 into lp:ubuntu/checkbox

[Javier Collado]

In this merge request, the diff shows some changes in debian/changelog before 0.13.4. Those changes are just because I removed trailing blanks in my editor. Please ignore any change in debian/changelog prior to 0.13.4.
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https://code.launchpad.net/~javier.collado/ubuntu/precise/checkbox/0.13.4/+merge/96587
Your team Ubuntu Sponsors Team is requested to review the proposed merge of lp:~javier.collado/ubuntu/precise/checkbox/0.13.4 into lp:ubuntu/checkbox.