Bug fix. Improve support for IE conditional comments. See websharks/html-compressor#35
Merge pull request #36 from websharks/feature/35

Bug fix. Improve support for IE conditional comments. See websharks/html...
Bug fix. Preserve spaces around `+`. See websharks/html-compressor#34
Merge pull request #37 from websharks/feature/34

Bug fix. Preserve spaces around `+`. See websharks/html-compressor#34