v1.4.0

BACKWARDS INCOMPATIBILITIES / NOTES:

• resource/linode_instance: tags field is now a TypeSet instead of a TypeList (#16)

ENHANCEMENTS:

• resource/linode_domain: Add tags field
• resource/linode_nodebalancer: Add tags field
• resource/linode_volume: Add tags field

BUG FIXES:

• linode_nodebalancer_node.label was updated from optional to required, the Linode API has always required this field