* GC: Use PackFile to de-dup logic
* Create a PackFile class for Pack filenames

* MergedReftable: Include the last reftable in determining minUpdateIndex

* Do not require org.assertj.core.annotations

* Log stack trace if CachingKeyPairProvider hits unexpected exception

* JGit v5.6.0.201912101111-r

* Upgrade error_prone_core to 2.3.4
* Merge branch 'stable-5.6'

* Merge branch 'stable-5.4' into stable-5.5

* Merge branch 'stable-4.10' into stable-4.11

* JGit v4.9.7.201810191756-r

* Update API problem filter

* JGit v4.7.3.201809090215-r

* Delete all loose refs empty directories
* Use java.nio to delete path to get detailed errors
* GC: Remove empty references folders

* StreamCopyThread: flush cannot interrupt a write
* StreamCopyThread: Remove unnecessary flushCount

* Prepare 4.4.0-SNAPSHOT builds

* Don't use deprecated LockFile constructor
* Fix warnings about unchecked conversion of MergeResult
* MockServletConfig: Fix warning about unchecked conversion of Enumeration
* HugeFileTest: Make Git a class member and open in try-with-resource
* Suppress "unchecked cast" warnings related to UploadPackFactory.DISABLED
* DiffAlgorithms: Fix warnings about variable hiding
* DirCacheBasicTest: Open ObjectInserter.Formatter in try-with-resource
* DirCacheBuilderIteratorTest: Open TreeWalk in try-with-resource
* DirCacheCGitCompatabilityTest: Open TreeWalk in try-with-resource
* DirCacheCheckoutMaliciousPathTest: Open Git and RevWalk in t-w-r
* DirCacheIteratorTest: Open TreeWalk instances in try-with-resource
* ForPathTest: Open TreeWalk in try-with-resource
* GitConstructionTest: Open Git instance in try-with-resource
* IndexDiffTest: Open Git instances in try-with-resources
* ManifestParserTest: Don't use deprecated StringBufferInputStream
* InMemoryRepository: Remove unused RevWalk from batch method signature

* Add Attribute Macro Expansion

* Sort "eager" path-like options to the end of the help
* reset command: provide convenient and meaningful options help
* commit command: allow to specify path(s) argument(s)
* status command: consume more then one argument after --
* repo command: properly name the required 'path' argument
* Un-ignored existing CLI tests which run just fine on Java 7+
* Don't treat command termination due '-h' option as a fatal error

* Properly support special regex characters in ignore rules

* Merge branch 'stable-4.0'

* Avoid calls to System.exit() and throw an exception instead

* Document that path parameters should use '/' as separator

* Interactive Rebase: Do actions if there were conflicts

* Add command support for listing stashed commits