Merge branch 'stable-2.15'
* stable-2.15:
Upgrade bazlets to latest stable-2.15 to build with 2.15.7 API
Upgrade bazlets to latest stable-2.14 to build with 2.14.17 API
Upgrade bazlets to latest stable-2.15 to build with 2.15.6 API
Upgrade bazlets to latest stable-2.14 to build with 2.14.16 API
Align Eclipse compiler settings with core Gerrit's
bazlets: Replace native.git_repository with skylark rule
Harmonize external dependency names to use hyphen
Upgrade mockito to 2.23.0
Upgrade bazlets to latest stable-2.15 to build with 2.15.5 API
Update bazlets to latest stable-2.14 to build with 2.14.15 API
Change-Id: If0d14bb36bfd0b9a894bcdc6da36a8169d0a18d8