* added translate keyword for assignee header
* changed people-search component to change the header according to filter type
* changed tash-header component to make assignee clickable
* imlemented people-search component to assign the task to new user
* added handler for assign task to new user
* added testcase for assign task to user
* changed mdl textbox to angular material
* changed button to md and fixed issues in testcase after changed md
* changed property for people-search component
* added ng-content selector to pass header text and action button text and removed property from people-search component
* added no_error_schema to fix testcase issue in people component
* fixed no-task-details component test case bug
* added people-search component in read me
* changed process comment template and used task comment component
* changed getTaskComment, getProcessInstanceComment, addTaskComment and addProcessInstanceComment to getComments and addComment
* removed provider from task comment component
* extended tasklist service and changed comment-list container css
* changed process service methods and associated test cases
* added error emitter and test cases for process-comments component
* fixed process header component test case
* added spinner module and translate text for process-list component
* added spinner loader for data-table in processlist-variable component
* added spinner loader for data-table in processlist component
* added spinner loader for data-table in process-attachmentlist component
* added spinner module and translate text for tasklist component
* changed css for adf-datatable: selector changed in component
* added spinner loader for data-table in tasklist component
* added spinner loader for data-table in task-attachmentlist component
* removed no-content template from task/process attachment list
* fixed tasklist testcase issues
* changed imort order for test cases
* fixed testcase issue in processlist component
* Add people component
* exported people service
* added people-list component to show the involved user list
* changed people-search component layout
* changed people-list usage in people component
* changed people-list data table from custom template to data adapter
* changes people-search component related to people-list
* changes in activiti-people related to people-list and people-search component
* changed data adapter to direct data column setting to data-table
* removed ngChanges and added User and UserEvent models
* added User and UserEvent model in emitter and other emitter handler
* added user event model
* changed activiti-people component with latest UX changes
* addedand changed translate keys to the components
* added hasUser method to check the condition in html
* fixed tslint issue and test case issue in activiti-people component
* added test case for actviti-people-list component
* test case added for activiti-people-search component
* changed activiti-people test cases according to latest UX changes
* added description for activiti-people component
* changed test case to fix component.upgradeElement issue
* changes requested by Vito Albano #1
* splitted getDisplayUser into getDisplayUser and getInitialUsername
* added service to get all the related content of the process instance
* added new component to create/upload attachment for process instance
* added unit test cases for create-process-attachment component
* exported create-process-attachment component
* added documentation for create-process-attachment component
* create button, download, view functionality added in task attachment list component
* created sevice to attach document to task
* added new component to create/uplaod attachment to task
* added new component to create/uplaod attachment to task
* added test case for create task attachment component
* added test case for create task attachment component
* added input to block upload document to ECM
* fixed create task attachment spec file issue
* changed alfresco-upload to alfresco-core upload directive
* removed attachCreate button and emitter from task-attachment-list
* removed uploadToEcm input and checkValidity method from alfresco-upload
* added documentation for task-attachment-list and create-task-attachment components
* added new component to list the process attachments with view, download and delete functionality
* added unit test cases for activit-process-attachment-list component
* exported new process attachment list component
* added documentation for process-attachment-list component