Added handling for glyphs and respStmts into the first and second passes (respectively) of the build process, which seem to be working well. Chatted with MT about linebreaks and he explained the various ways the ISE have used milestones and linebreaks. Summary of points made by MT:

• TLNs, QLNs, L, and MS tags are all milestone units and not end of line breaks
• Editors can make up their own types of milestones with their own numbering systems if they choose
• White space line breaks (\n) are significant and represent the linebreaks for that particular edition

This poses some questions to ask MH and JJ at some point. Should all milestone like things become milestones with '\n's becoming <lb edRef="#thisEd"/>? MT also mentioned that since we're now using the ISE tools to manipulate the IML, we don't the multiple regex conversions that we're currently using.