updated to version 7.x-2.3

* ucsf images changes so that squares and field images have a max-width on their container
* ucsf_images fix for stropos() warning
* add support for gallery landing to css in ucsf)images
* missing IMG on images def for ucsf_images (images inside cntainrs)
* ucsf_images module, added new class to array for box-sizing
* add a class to ucsf_images for video preview support overlay thingys
* fix weight inconsistency for UCSF_IMAGES