* Upgrade error_prone_core to 2.0.19

* PullCommand: Add support for recursing into submodules

* bazel: Consume hamcrest through transitive dependency

* Explain in error message how to recover from lock failure

* Update orbit to S20170306214312 (Oxygen M6)

* Update Jetty to 9.4.3.v20170317

* Merge branch 'stable-4.6'

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

* Remove Buck build

* Add remaining parts of the bazel build

* Delegate crypto algorithm creation to InsecureCipherFactory

* JGit v4.5.1.201703201650-r

* bazel: Mark junit targets testonly
* bazel: Add explicit targets for library dependencies
* Fix test configuration to run RacyGitTests, and fix testRacyGitDetection

* LongObjectIdTest: Remove self comparison test
* RevFlagSetTest: Fix compilation error flagged by error prone
* Move SHA1 compress/recompress files to resource folder

* Merge branch 'stable-4.6'

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

* Don't try to strip new line if the message buffer is empty

* Don't remove pack when FileNotFoundException is transient

* Upgrade error_prone_core to 2.0.18

* FetchCommand: Fix detection of submodule recursion mode

* Silence API error reported in LfsProtocolServlet

* Update JGit version used to detect API changes to 4.6.0

* Update jsch version used in pom.xml to 0.1.54

* LfsProtocolServlet: Pass HTTP Authorization header to getLargeFileRepository

* Merge branch 'stable-4.6'

* Prepare 4.6.2-SNAPSHOT builds

* JGit v4.6.1.201703071140-r

* Merge branch 'stable-4.6'

* Update Jetty to 9.4.1.v20170120 in buck build

* Update Jetty to 9.4.1.v20170120

* Update build to use Tycho 1.0.0

* Update minimum JDK version in README

* FetchCommand: Add basic support for recursing into submodules

* Remove unnecessary @SuppressWarnings("nls")

* Make Repository.normalizeBranchName less strict

* SHA-1: collision detection support

* Silence API error caused by changed return type of digest()

* Correct the boolean logic for filtering paths

* SHA1: support reset() and reuse instances

* Switch to pure Java SHA1 for ObjectId
* Pure Java SHA-1

* Update Jetty to 9.4.1.v20170120 in buck build

* Remove unused imported package in org.eclipse.jgit.ant.test

* Enable and fix warnings about redundant specification of type arguments

* Fix hamcrest dependency in org.eclipse.jgit.ant.test

* Add API filter for usage of FileRepository in test classes

* Fix bad test fix from 0bff481 "Limit receive commands"

* Fix timestamp in Zip archives

* Add some more missing @Override annotations

* Enable and fix 'Should be tagged with @Override' warning

* Update Jetty to 9.4.1.v20170120