* Pack: Replace extensions bitset with bitmapIdx PackFile
* PackDirectory: Use PackFile to ensure we find preserved packs

* ObjectDirectory#selectObjectRepresentation: fix formatting

* Prepare 5.5.1-SNAPSHOT builds

* Fix NPE in RebaseTodoFile#parseComments
* Fix NPE in ObjectIdOwnerMap#get
* Fix NPE in CommitOnlyTest#getHead
* FileUtils#lastModifiedInstant should not log error if path doesn't exist
* Cache user global and system-wide git configurations
* Avoid setup and saving FileStoreAttributes compete for ~/.gitconfig lock

* Delete jgit-4.5 target platform
* Add 4.11-staging target platform and update Orbit to I20190123233226

* UploadPack.FirstLine: Revert renaming of getOptions into getCapabilities

* Add progress monitor step to first phase of GC commit selection

* ReflogWriter: Refactor to open FileOutputStream in try-with-resource
* PushCommand: Suppress resource warning for Transport in for loop

* Fix javadoc leftovers in org.eclipse.jgit api package

* TransportHttp: retry on IOException with another mechanism

* dfs: reftable backed DfsRefDatabase
* Support symbolic references in ReceiveCommand

* Merge branch 'stable-4.7' into stable-4.8

* Merge branch 'stable-4.5' into stable-4.6

* Push implementation of option strings

* Log if Repository.useCnt becomes negative
* Time based eviction strategy for repository cache
* Add method to read time unit from config

* CheckoutCommandTest: Create Git instances in try-with-resource
* BranchCommandTest: Create Git instances in try-with-resource
* CheckoutTest: Create Git instances in try-with-resource
* BranchTest: Create Git instances in try-with-resource
* URIishTest: Use @Test annotation's `expected` argument
* Suppress "The allocated object is never used" warning in tests
* Add $NON-NLS to suppress "Non-externalized string literal" warnings
* Don't use deprecated constructors of CmdLineException

* Ignore API errors about Tree, TreeEntry, FileTreeEntry and friends being removed
* Revert "Revert "Remove deprecated Tree, TreeEntry, FileTreeEntry and friends""

* Add a hook test

* Update atomic constant

* Fix RevertCommand to correctly revert multiple commits at once.

* Fix manifests of source bundles

* Add some tests cases on files modes for symbolic links
* Add some test cases for symbolic links with Java7
* Normalize paths on OS X

* Cache SimpleDateFormat in GitDateParser per locale

* Fix tests for OS X when the tmpdir is the default /tmp

* Add tgz and txz archive formats

* Always add FileExt to DfsPackDescription

* Reduce memory held and speed up DfsGarbageCollector.

* Prepare 1.3.0 builds

* Push errors back over sideband when possible
* Report progress while updating references