openscholar/openscholar — pull request #6435 by ran81 (2014-07-24 05:51:05+00:00)
Title: Don't allow event CSV import when only end date is given.

#6054

Now when the start date is empty for an event the user gets this message:
![selection_407](https://cloud.githubusercontent.com/assets/4497748/3684183/79e5e0c6-12f6-11e4-9b47-2189289656dd.png)