News and events management inteface

1. List of predefined searches 

 Each user has a list of predefined searches based on their profile. These searches are: 

 My News/Events: list of news/events entered by the user 

 My subscriptions: list of news/events from channels to which I have subscribed 

 My validations: list of items awaiting validation 

 My channels: list of items published in channels for which the user is a validator 

 2. General actions 

 Each user has actions based on his/her profile. These actions are: 

 Subscribe to news channels 

 Add items (news, events) 

  3. Advanced search 

 An advanced search is available by default.   4. Navigation 

 Users can filter and sort search results according to their needs. Validators can also launch grouped actions on search results. These actions are: Delete/Relay/Propose selected list.