4.15.17

🐛 Bug Fix

• #1510 The image properties dialog no longer overwrites a margin set by a stylesheet with margin: 0px when the margins are left unchanged. Thanks @brendon.
• #1512 Clicking an image just after inserting it no longer leaves Safari highlighting the rest of the image's line. Thanks @brendon.
• #1514 Clicking back into the editor after it lost focus puts the caret where you clicked in Chrome, instead of restoring the previous selection. Thanks @brendon.
• #1516 The image popup's vertical align button is disabled for a floated or block image, where vertical-align has no effect. Thanks @brendon.