imdb cast: replace &nbsp in character
Revert "cache and config in .gitignore"

This reverts commit 5aae486aa2af2341da014dd79e55908dbeeaa1f0.
imdb: cast now working with very long lists, too (testSeries2)
test_imdb: modified test to match changed imdb data
imdb: actor image fixed
test_imdb: disabled testMovie6 - IMDB has no longer a runtime for this movie