2.4.0

Added support for Aztec barcodes in #137. An example of using it within XSL-FOP is as follows:

<barcode:barcode message="some random message in LATIN-1">
    <barcode:aztec>
        <barcode:module-width>1.8mm</barcode:module-width>
        <barcode:ec-level>33</barcode:ec-level>
        <barcode:layers>0</barcode:layers>
        <barcode:quiet-zone enabled="false"/>
    </barcode:aztec>
</barcode:barcode>

Also in this release; ZXing is no longer compiled scope. It's an optional dependency only needed for Aztec & QR Codes, therefore it's been changed to scope provided as it should be added by users depending on their needs.

Full Changelog: 2.3.1...2.4.0

Download using Maven:

    <dependency>
        <groupId>com.singingbush</groupId>
        <artifactId>barcode4j</artifactId>
        <version>2.4.0</version>
    </dependency>
    <dependency>
        <groupId>com.singingbush</groupId>
        <artifactId>barcode4j-xalan</artifactId>
        <version>2.4.0</version>
    </dependency>
    <dependency>
        <groupId>com.singingbush</groupId>
        <artifactId>barcode4j-xgc</artifactId>
        <version>2.4.0</version>
    </dependency>
    <dependency>
        <groupId>com.singingbush</groupId>
        <artifactId>barcode4j-fop-ext</artifactId>
        <version>2.4.0</version>
    </dependency>