Fix referenced terms in glossary so that they properly link to their definitions

[geealbers]

There are seven instances of terms referenced within the glossary that have broken links because the terms don't exactly match a glossary entry (which is the only way we can create these links). Five of them seem clear about what the fixes are, but two I wasn't so sure about.

• weave enhancement: referenced in the definition for "abrasion" -- maybe "weave" or "weave emphasis" or "weave interference patterns"?
• nap bond: referenced in the definition for "compression hold" -- should be "nap bond lining"
• animal glues: referenced in the definition for "gelatin" -- should be "animal glues (bone and hide)"
• *Cooling iron*: referenced in the definition for "irons" -- should be "cooling iron" (no italics, no uppercase)
• backing: referenced in the definition for "moisture barrier" -- should be "backing, backboards, backing boards"
• reflectance transformation imaging referenced in the definition for "RTI" -- should be "reflectance transformation imaging (RTI)"
• pressure distortion: referenced in the definition for "surface texture, changes in" -- maybe "pressure sources for lining"?

[rabarth1]

weave enhancement: should be "weave emphasis" nap bond: should be "nap bond lining" animal glues: "animal glues (bone and hide)" Cooling iron: should be "cooling iron" (no italics, no uppercase) backing: "backing, backboards, backing boards" reflectance transformation imaging referenced in the definition for "RTI" -- should be "reflectance transformation imaging (RTI)" pressure distortion: referenced in the definition for "surface texture, changes in" -- cut pressure distortion, because "pressure sources for lining" is already linked there.

[geealbers]

Done with 322e3d9