Install gridster-rails
Make prototype of gridster in works
Use gridster gem from my repo
Restore original gemfile plus gridster to my repo
Change indenting in _work_content partial
Rename work_content to work_content_overlay
Create _works_grid partial
Add gridster tile options to work edit (debugging)
Replace background_image in works with grid_tile_image
Put works_grid into .envelope in works/edit
Fix spelling error in migration
  grid_tile_iamge -> grid_tile_image
Add attachment for grid_tile_image
Change base size of grid tiles to 200x200
Make overlays invisible by default
Make grid tile css dimensions match js
Make get_tile_image_css method
update works_params to have grid_tile_image
Display grid tiles as defined by user
Remove dots from li elements in grid
Change code formatting in _works_grid