Bug 1078243 - [Costcontrol] When the Starting day of the reset period is...

... 31th, the app does not calculated correctly the end of the reset period.
Typo: `lowerData must be 2014-2-28`. Recommendation, if you refactor this, omit the comments, make a config file clear enough to reflect what you're testing and if it's needed to add a custom function to create dates with months starting at 1 instead of 0, better.