style(init): remove trailing whitespace from generated config file
feat: serve ePub as binary files

The *.epub files are now served as binary file by Karma. Otherwise they are
converted into strings and became corrupted.
docs(plus): Add Codio integration.
Merge pull request #1081 from ijobling/docs-codio-friedel

docs(plus): Add Codio integration.
Merge pull request #1072 from karma-runner/epub-as-binary-files

feat(preprocessor): serve ePub as binary files
Merge pull request #1071 from dmitriiabramov/master

Remove trailing whitespace from generated config file
feat(config): #1084
Merge remote-tracking branch 'upstream/master'