Merge branch 'hotfix/1.7.5'
Fix 1.7.5 release build
Revert "Java improvements from preprocess rewrite"

This reverts commit 47ca3abc4ab47b5cc4ed28ba0ce17c0dc91f7d95.
Fix title JS string escaping bug #1498

Reimplement as a single recursive template.
Fix keyref processing attribute cascading bug #1459
Fix unit test for changes in commit ff0a974
Merge master to get doc updates from latest stable release
Prepare 1.8 release
Add missing XML catalog to TocJS XSLT processing
Clean argument documentation
Merge branch 'release/1.8'
Merge branch 'master' into develop
Fix topichead with chunk and copy-to #1529
Fix merging ID bug with duplicate topics dita-ot/dita-ot#1528
Merge pull request #1530 from jelovirt/feature/duplicate_topic_merge

Fix merging ID bug with duplicate topics dita-ot/dita-ot#1528
Clean quick start guide map

Use copy-to to make installing-full-easy.dita unique in user documentation.
New website transtype #1533
Use class value instead of QName #1535
Fix transtype XPath guard in conref stylesheet
Fix and simplify title whitespace normalization #1537