Ignore eclipse files in eclipse sub-projects
fixes #1294
fixes #1294
Merge PR #1302 by @MarcinSc - dupe code fix
Merge PR #1303 by @MarcinSc - dynamic queue fun
Add BaseInteractionScreen to help create screens with less plumbing.
Merge PR #1306 by @Josharias - utility interaction UI class
add apply button to PreviewWorldScreen #1231
replace *-import
Merge PR #1277 by @msteiger - eclipse tweak
Merge #1308 by @meniku - apply button for world preview - fixes #1231
Fixed checkstyle errors in DynPrioQueue
Merge pull request #1313 from msteiger/dynprioqueue_cleaned

Fixed checkstyle errors in DynPrioQueue
allow to cancel world preview
add error label
ensure that only valid colors are generated
add progress percent to wait popup
Merge PR #1314 by @meniku - preview cancel option
Update readme - F1 clarification, two new modules, new contributor
Adding ImmutableBlockLocation for other classes to use, for example as a key in maps.