Merge pull request #1053 from phpmd/release/2.15.0-release

Add changelog for PHPMD 2.15.0

Merge pull request #1040 from phpmd/release/v2.14.1

Prepare 2.14.1 release

Merge pull request #1033 from tvbeek/prepare_2-14-0

Prepare for version 2.14.0

Merge pull request #981 from phpmd/release/2.13.0

Release 2.13.0

Merge pull request #947 from tvbeek/prepare_2.12.0

Prepare for version 2.12.0

Merge pull request #929 from phpmd/release/2.11.1

Prepare build for 2.11.1 release

Merge pull request #922 from phpmd/release/2.11.0

Prepare build for 2.11.0 release

Merge pull request #904 from TJVB/prepare_2_10_2

Prepare the release for version 2.10.2

Add changelog for 2.10.1 and bump project.version (#890)

Merge pull request #880 from phpmd/release/2.10.0

Add changelog for 2.10.0 and bump project.version