fix(patch)-Patch on resources that uses elastic search is not working

On patch is called a find that go through eve and returns the _id in
string format. Because of this the update on mongo by using this string
id is not working properly.
Adds copyright info to application file and missing contributors to AUTHORS
Update AUTHORS

Fixes markdown format
Updates e-mail formatting

Fixes e-mail formatting using proper md syntax
Merge pull request #459 from ioanpocol/master

fix(patch)-Patch on resources that uses elastic search is not working
Merge pull request #461 from hlmnrmr/copyright

Copyright notices
Moved DAYS_TO_KEEP to environment variables
[SD-1268] API: Rename the end point for saving the search
[SD-1269] Backend: Make sure the search criteria is saved without the context
[SD-547]  Delete a saved search
[SD-548]  List saved searches