v3.0.0

New in this version:

• Updates java version requirement (to java 8)
• Removes some deprecated methods
• Support attribute "underline-pattern"
• Don't make a row if a block contains only an expression which is empty when evaluated
• Remove "no block allowed within block with underline properties" restriction
• Raises the log level for non-braille characters in PEF output
• Improves documentation
• Requires dotify.api 3.0.0