[heise] Fix description, thumbnail and format ID
[ustream] Use modern helper function instead of old HTML parser
[gamespot] Remove unused import
[utils] Remove unused get_meta_content function
[imdb] Simplify
[utils] Use a regexp instead of HTMLParser for get_element_by_attribute
[youtube] Clarify output
release 2014.11.04
[izlesene] Update test cases and modernize

The timestamp fluctuates with DST.