Adds recognition of m4v videos.

Conflicts:

	epublib-core/src/main/java/nl/siegmann/epublib/service/MediatypeService.java
Adds recognition of webm .

Conflicts:

	epublib-core/src/main/java/nl/siegmann/epublib/service/MediatypeService.java
Adds support for additional media types.

Conflicts:

	epublib-core/src/main/java/nl/siegmann/epublib/service/MediatypeService.java
Adds recognition of wmv media type.

Conflicts:

	epublib-core/src/main/java/nl/siegmann/epublib/service/MediatypeService.java