Merge pull request #67 from outcoldman/dev

Add support for unit tests (#63)
changed background size on thumbnails

the Snapito API doesn’t seem to be reading the size parameter, so apply
“cover” to background size will make sure that thumbnails don’t get
distorted.
Revert "changed background size on thumbnails"

This reverts commit afa17ff3d111803f55d3e1054f2b14be73b28141.
changed position of search clear button