v2.3.0

Support for 3D Touch #170 (aaronsky)
Added Restricted Brick Size #168 (jay18001)
Make imageView public so subclasses can use it #167 (jeffoleary1987)
Fixed the invalidating heights animation #164 (jay18001)
BrickCell width provider #162 (rubencagnie)
Update travis to run iOS 11 tests #160 (jay18001)
Properly insert/delete items #159 (rubencagnie)
Optimize indexPath search using visible cells #157 (rubencagnie)