ploum/FlattrStat — pull request #1 by mluto (2013-06-15 15:13:55+00:00)
Title: calculate and print the money got each month

Adds additional output showing the money earned each month:
```
Months:
2013-03: 2.11 €
2013-04: 5.12 €
2013-05: 7.13 €
```