[fix bug 997891] Update subject line for budget request discussions.
Merge pull request #716 from akatsoulas/997891

[fix bug 997891] Update subject line for budget request discussions.
[Fix bug 861993] Add progress bars in voting.
Merge pull request #719 from johngian/pr-627

[Fix bug 861993] Add progress bars in voting.
Add NGMetric and NGMetricStats models.
Expose NGMetric to base content.
Remove old metrics dependencies except of models.