packager.sh: read-write access to git remote is now managed
update oq-risklib version to 0.3.0
packager.sh: enhanced to support simultaneous multiple remotes retrieving the right value from the current branch
packager.sh: more general approach to retrieve git repository
Merge branch 'master' of http://github.com/gem/oq-risklib into risk-calculator-refactoring
added python-mock debian dependency