* stable-2.15:
Skip migrating inline comments on missing patch set parents
Temporarily increase heap size of NoteDb migration tests
Log the reason why a project cannot be found
Change kind cache: short-circuit on root commits
Document that gitweb.type must be set
Tidy up config-gitweb
Change kind cache: short-circuit on root commits
Do not abort indexing if < 50% projects failed
Improve documentation of `index.maxLimit` for Elasticsearch
InitIndex: Set Elasticsearch index config under elasticsearch section
Link to hashtag intro docs from more places
user-upload.txt: Document setting hashtags on push
intro-user.txt: Document hashtags
user-search.txt: Document hashtag operator
intro-user.txt: Mention that topics may affect submission
Add NoteDb migration test for change with no patch set refs
NoteDbMigrator: Totally skip changes with no patch sets
Add more tests for rebuilding changes missing some entities
Fix Change-Id in revert email
Widen set of My Drafts menus that are automatically removed
Migrate old My Drafts menus in refs/users/default
This partially reverts commit e518d9dacc
because Schema_159_to_160_Test references PREFERENCES which was made
private, and uses the forDefault method which was removed. This commit
makes PREFERENCES package visible and re-adds the forDefault method as
a package visible method.
Change-Id: Ifba662a47197b3a5f17988fc69896cdca1ff853b
3c62aa0d0b