src/main/java/wycc/commands/Install.java
private Content.Type getContentType(String suffix) {
		List<Content.Type<?>> cts = project.getParent().getContentTypes();
		//
		for (int i = 0; i != cts.size(); ++i) {
			Content.Type<?> ct = cts.get(i);
			if (ct.getSuffix().equals(suffix)) {
				// hit
				return ct;
			}
		}
		// miss
		throw new IllegalArgumentException("unknown content-type: " + suffix);
	}
private Content.Type getContentType(String suffix) {
		List<Content.Type<?>> cts = project.getParent().getContentTypes();
		//
		for (int i = 0; i != cts.size(); ++i) {
			Content.Type<?> ct = cts.get(i);
			if (ct.getSuffix().equals(suffix)) {
				// hit
				return ct;
			}
		}
		// miss
		throw new IllegalArgumentException("unknown content-type: " + suffix);
	}
Determine the content type from the suffix of a given build/includes
attribute entry.

@param suffix
@return