monitoring fixes
[maven-release-plugin] prepare release tajin-framework-pom-2.18
[maven-release-plugin] prepare for next development iteration
nullfix
[maven-release-plugin] prepare release tajin-framework-pom-2.19
[maven-release-plugin] prepare for next development iteration
Merge remote-tracking branch 'origin/tajin-framework-2.x'

Conflicts:
	tajin-framework/all/pom.xml
	tajin-framework/bootstrap/pom.xml
	tajin-framework/pom.xml