Left-aligned titles of labs and tutorials by default

Implemented cross-references to list items ...

• Added label attribute to <item> element.
• Added cross-referencing to <item> labels.

Note this only makes sense for enumerated lists, but this isn’t checked
as there’s no clean way to do it. There’s also no check that the <item>
is inside a list element, because there are about a billion different
element variants that can be used to specify a list.

• Fixed missing apply-templates in top-level menu template for (X)HTML.

• Added support for inline images that are the same height as the line height (automatically scale based on font size).

• Added support for menukeys (closes #12).

• Added \texorpdfstring macros to superscript and subscript text embedded inside section titles.

• Added rudimentary support for horizontal skip (\hskip).

• Fixed framed paragraphs in (Xe)LaTeX so that the frame width adjusts to fit the text width. ...

• Adjusted paragraph frames to stick out into the margin, leaving the text the normal width.

• Fixed definition lists so that standalone <term> elements aren’t converted into list items.

• Made long table captions a sub-element of tabular instead of an attribute. ...

• Added support for longtable (first) headers and (last) footers.

• Added basic longtable support to enable tabulars to break over pages. ...

• Renamed row/@no-page-break to row/@page-break, and reversed sense of value to match.

• Switched to XPath value comparison operators (eq, etc.) where appropriate. ...

• Made better use of XPath general comparison operators for lists of alternatives.
• Normalised synonyms for “center” in attributes.
• Normalised synonyms for “yes” and “no” in attributes.

• Added support for vertical and horizontal positioning (@vertical-position, @horizontal-position). ...

• Added support for explicit and automatic vertical and horizontal sizing (@width, @height, @fit-width, @fit-height).
• Added ability to disable sideways printing.

• Added conditional processing of page breaks within <question> and <answer> elements.

• Added amsmath package and switched to split environment for aligned equations (closes #11).

• Changed question set answers to be processed similar to tutorials and labs. (Doesn’t seem to have any effect, though?)

• Added support for question sets to (X)HTML as well (oops).

• Added support for question sets. ...

• Refactored detection of different types of document class.

• Added title-case function.

• Removed unnecessary \ensuremath for left-brace and right-brace.

• Added SequenceNumber element.

• Replaced font element with corresponding CSS class.

• Tweaked font weighting for HTML. ...

• Shifted small class from calendar element to surrounding div.

• Rewrote Oracle documentation and Blackboard elements to use the hyperlink template rather than hyperlink-internal. ...

• Removed no longer necessary inclusion of EXSLT namespace (closes #5).
• Removed obsolete hyperlink-internal and empty-hyperlink-url-internal templates.
• Refactored oracle-docs.perl:
    - Rewrote with better Perl idiom (hash instead of tab-delimited strings for configuration).
    - Removed deprecated and obsolete code.

• Added further clarification about the behaviour of split hyperlinks in (Xe)LaTeX.

• Added BlackboardPath element for more easily specifying paths to files in the Blackboard file system.

• Corrected comment on calendar element (missing “only”).

• Moved processing of \item[] for definition lists into the keyword element. ...

• Added @linebreak attribute for definition list keywords.

• Fixed spacing of exercises in (Xe)LaTeX.

• Corrected exercise element to produce HTML output when it contains embedded paragraph elements.