Updates for RDB sync
Transformation framework simplified
Added comments
RDB sync work
Updates for Collect relational DB sync
Cleanup of unused modules
Merge branch 'master' into rdb

Conflicts:
	idm-api/src/main/java/org/openforis/idm/metamodel/CodeList.java
	idm-api/src/main/java/org/openforis/idm/metamodel/xml/XmlParseException.java
	idm-api/src/main/java/org/openforis/idm/transform/AutomaticColumnProvider.java
	idm-api/src/main/java/org/openforis/idm/transform/CompositeAttributeColumnProvider.java
	pom.xml
Relational database generation and export in progress
Null pointer checks
Handling of some invalid paths
OFC-1310 Generate code list tables using Collect RDB API - Work in progress
OFC-1310Generate code list tables using Collect RDB API
Removed unused interface
Merge branch 'rdb'

Conflicts:
	idm-test/src/main/resources/test.idm.xml