Download the source code and extract it, then run

mvn clean package 
mvn -Pdemo -pl actangular-webapp jetty:deploy-war

On your browser go to http://localhost:8080/actangular

Login using Activiti's demo users:

Some of the features currently available are

• Login and logout with remember me feature support
• Managing tasks i.e. listing, sorting, creating/editing/claiming/completing/deleting, posting comments, adding/deleting identity links, uploading attachments, etc..
• Managing process instances i.e. listing, sorting, starting/deleting, adding/deleting identity links, listing related tasks, etc..
• Historic tasks and process instances listing and sorting
• Form rendering and submitting, supports string, date, boolean, and long form property types
• Task and process instance variables, supports string, date, and long variable types
• Managing models i.e. listing, creating/editing/deleting models
• Modeler integration enables modeling, converting to BPMN and deploying from the Modeler
• Process diagrams rendering using SVG (client side) and PNG (sever side)
• Multi-language, currently English and Arabic (with RTL support)

http://sarori.blogspot.com/2014/11/introduction-to-actangular.html