Pod update

Merge branch 'feature/set_image'

Updated README

Merge branch 'hotfix/duplicate_fetch'

Bumped spec to 1.4.2 and updated changelog

Merge pull request mikaoj#38 from mikaoj/crash_on_first_run

Crash on first run

Pre 1.4.0 release

Merge pull request mikaoj#29 from mikaoj/cells_per_row

Cells per row

Updated CHANGELOG

Changed screenshot URL to master branch