I need to convert Monthname + Year to a valid date range. It needs to work with leap years etc.

**Examples**

```
getDateRange("Feb",2015)  

```

should find the range `2015-02-01 -- 2015-02-28`

**While**

```
getDateRange("Feb",2016)  

```

should find the range `2016-02-01 -- 2016-02-29`