Added a new bibconver formatting function "JOINMULTILINES". It is used to join a multiline string into a single line. The function interface is: JOINMULTILINES(prefix,suffix) For each segment resulting from the split on newline, "prefix" will be appended to the front and "suffix" will be appended to the end. Example of calling: For the field XX with the value: Test Case, A And the function call: <:XX^::XX::JOINMULTILINES(<subfield code="a">,</subfield>):> The results would be: <subfield code="a">Test</subfield><subfield code="a">Case, A</subfield>

Also added a new notation "^" to source fields, e.g.:

<:XX^::XX:>

It is similar to the notation "*" which is used to signify repeating source
fields. However, "^" is used to tell bibconvert to preserve the newlines
in the source field so that they can be processed by functions such as
"JOINMULTILINES", above.