Merge pull request #120 from solerante:solerante/issue119

Tilesets should be selectable by dropdown

Merge pull request #117 from solerante:solerante/issue116

paths on windows and linux error
Fixes #116

Merge pull request #97 from solerante/solerante/issue70

various fixes

Merge pull request #101 from solerante:solerante/issue100

map exports should be linted, if possible