This fixes three issues in XLingPaper interlinear export. The fixes are all in the xml2XLingPapCommonConcatMorphemes.xsl file. The diff may be a bit hard to read since it looks like a lot of changes, but it's a case of having to create some "choose/when" items to fix them so a lot of code which stays the same is now in a different location.
The three issues are:

1. If a line begins with two punct items, only the first is output. The fix is:

<xsl:value-of select="normalize-space(.)"/>

2. If a line has no vernacular words in it at all (as in the new BruceCoxEmpty test case), then the punct items are not output at all and there is an empty element in the XLingPaper output. The fix is in the first (new) choose/when case with this comment:

3. In rare cases (as illustrated in the new Jibiyal3Text test case), the FLExText would not have a word with a failed morphemes indication. (as in text 59 in the text) The fix is the code in this choose/when case:
   <xsl:when test="name()='morph'">

As mentioned, there are two new test cases to check for these issues. The existing nszEnglishWords test case needed to be updated because it, too, had cases fixed by number 1.

This change is