Recent bug fixes

Here's short list of recent bug fixes:

• Editing Preheader text - We have resolved a caching issue that would occur when editing preheader text on a campaign, which would prevented those changes from being displayed correctly when previewing via email or browser.

• Repeated errors in a CSV - Importing CSVs that contained too many errors (e.g. An invalid date value repeated on every line) could cause a server error, we now limit the number of errors displayed on screen.

• Image and Button Alignment in Safari - We've fixed a bug with the drag and drop template editor on the Safari browser that would not always show changes made to the alignment of an image or button block.