The fix for #111 added an end tag for all StartEnd tags, when outputting
HTML5, but there should be some exceptions to this.
Added a new service, isVoidElement(node) for the void elements. Perhaps
this service could be further optimised.
This is a set of kludgy fixes for MathML attribute and entities support.
It is intended that a full HTML5 entity table be added at some time, but
at present ALL entities are accepted as written when within the math
element.
Likewise all attributes are accepted on MathML elements without any check
of their name or value, even if they match attributes outside MathML.
And in the pprinter such entities are written as is from the lexer, using
a new PPrintMathML service added, using the new mode OtherNameSpace.
It is hoped all these fixes will NOT effect tidy outside the math element.
ALL fixes in the set a clearly marked '#130 - MathML attr and entity fix!'
for easy searching, and improving if possible.
As predicted the previous fix had adverse consequences on say script text,
which then lost the indent, and was reverted.
This introduces a new service, nodeIsTextLike, which naturally returns yes
if it is text, but also is an AspTag.
Maybe other text like nodes need to be added.
This is a simple but profound change in pprint.c.
Since leading space is preserved on script code, after tidy indents
the code once, a second run on that tidied file would add more indent
to already indented code. This fix should be carefully checked,
and removed if there are other bad consequences.
Bump the version point to 4 for this change.
