[maven-release-plugin] copy for tag license-maven-plugin-3.0

[release] 3.0.rc1

adeed git ignore file

[maven-release-plugin] copy for tag license-maven-plugin-parent-2.10

[maven-release-plugin] copy for tag license-maven-plugin-parent-2.9

[maven-release-plugin] copy for tag license-maven-plugin-2.8

[maven-release-plugin] copy for tag license-maven-plugin-2.7

[maven-release-plugin] copy for tag license-maven-plugin-2.6

[maven-release-plugin] copy for tag license-maven-plugin-2.5

[maven-release-plugin] copy for tag license-maven-plugin-2.4