Allow overriding Bible name

This works for all import formats. When the import format does not
provide a Bible name (or a misleading one) and the export format
requires one (which is hard to edit later), the System Property
`biblemulticonverter.bible.name` can be used to override the bible name,
therefore avoiding the need to convert to an intermediate format.

Closes #103.

Author: schierlm

biblemulticonverter/src/main/java/biblemulticonverter/data/Bible.java

@@ -18,7 +18,7 @@ public class Bible {
 	private final List<Book> books;
 
 	public Bible(String name) {
-		this.name = Utils.validateString("name", name, Utils.NORMALIZED_WHITESPACE_REGEX);
+		this.name = Utils.validateString("name", System.getProperty("biblemulticonverter.bible.name", name), Utils.NORMALIZED_WHITESPACE_REGEX);
 		this.books = new ArrayList<Book>();
 	}