CORE-1942 Support for changeSet "labels"
CORE-1942 Support for changeSet "labels"

Added support for labels to spring, servlet, ant and maven integrations
CORE-1942 Support for changeSet "labels"

Added support for labels to formatted sql
Merge branch 'master' into sql-execution-refactoring

Conflicts:
	liquibase-core/src/main/java/liquibase/RuntimeEnvironment.java
	liquibase-core/src/main/java/liquibase/changelog/ChangeSet.java
	liquibase-core/src/main/java/liquibase/changelog/StandardChangeLogHistoryService.java
	liquibase-core/src/main/java/liquibase/sql/visitor/AbstractSqlVisitor.java
	liquibase-core/src/main/java/liquibase/sql/visitor/SqlVisitor.java
	liquibase-core/src/test/groovy/liquibase/sql/visitor/StandardSqlVisitorTest.groovy
Finished merge of label functionality