[oozie] Change ok link to to link for action nodes
[oozie] Delete a node from a fork
[oozie] Initial support for arrow linking
[oozie] Add computed linkMapping to workflow
[oozie] Delete any node in a fork
[oozie] Add row in between rows
[oozie] Drop on existing fork does not create a new fork anymore
[oozie] Disable slide up and down on drop
[oozie] Fix for a getPredecessor bug before forks
[oozie] Arrow drawing on model change
[oozie] Support create a fork or add a new node to a fork
[core] Updated font-family on Bootplus and enabled compression
[oozie] Support for widget successor
[oozie] Refactor getWidgetSuccessor and getWidgetPredecessor